Onion Potato Casserole Recipe: 5 Easy Steps with Paprika

Looking for a savory, comforting, and plant-based dish? This Onion Potato Casserole Paprika Recipe is the perfect blend of flavors, combining tender potatoes, caramelized onions, and the rich warmth of paprika. Whether you’re craving a hearty side dish or a satisfying main course, this easy potato bake is a must-try for any plant-based kitchen.

This vegan onion potato casserole is not only dairy-free and gluten-free but also made with simple, wholesome ingredients. The paprika adds a smoky depth, enhancing the natural sweetness of the onions and creaminess of the potatoes. Plus, it’s baked to perfection in just one dish, making cleanup a breeze!

Ready to enjoy a flavor-packed potato casserole? Let’s dive into this easy 5-step recipe that’s perfect for dinner, meal prep, or any cozy gathering!

Why You’ll Love This Onion Potato Casserole

If you’re looking for a hearty, flavorful, and easy-to-make dish, this Onion Potato Casserole Paprika Recipe checks all the boxes! It’s a comforting plant-based meal that’s packed with savory flavors, made with simple pantry staples, and requires minimal effort in the kitchen. Whether you’re following a vegan diet or just love wholesome, home-cooked food, here’s why this recipe will become your new favorite.

Plant-Based & Dairy-Free – Perfect for Vegan Diets

This onion potato casserole paprika recipe is completely plant-based, dairy-free, and egg-free, making it ideal for those following a vegan lifestyle or anyone looking for a healthier, dairy-free alternative. Instead of traditional cream or cheese, this casserole gets its rich texture from plant-based milk and optional nutritional yeast for a cheesy, umami flavor.

By using olive oil instead of butter and skipping heavy dairy ingredients, this dish remains light yet satisfying. Plus, it’s naturally gluten-free, so it’s perfect for anyone with dietary restrictions!

Simple Ingredients – Uses Pantry Staples Like Potatoes, Onions & Paprika

One of the best things about this onion potato casserole paprika recipe is that it’s made with budget-friendly ingredients you likely already have in your kitchen. The key components of this dish include:

  • Potatoes – Yukon Gold or Russet potatoes work best for a soft, creamy texture.
  • Onions – Adds a sweet and slightly caramelized flavor.
  • Paprika – The star ingredient, bringing warmth and a subtle smokiness.
  • Olive Oil – Helps coat and roast the potatoes for a golden finish.
  • Garlic & Herbs – Enhances the savory depth of the dish.
  • Plant-Based Milk – Creates a creamy consistency without dairy.
  • Nutritional Yeast or Vegan Cheese (Optional) – Adds a cheesy, umami-rich taste.

Since these staple ingredients are easy to find and store, this casserole is a go-to recipe for busy weeknights or last-minute meal planning.

Easy One-Pan Meal – Minimal Prep and Baking Effort

If you love simple, no-fuss meals, this onion potato casserole paprika recipe is perfect for you! With just a few steps, you can prepare this dish in one casserole pan, making both cooking and cleanup effortless.

  • Minimal Chopping – Just slice the potatoes and onions, then season.
  • No Complicated Techniques – Layer everything in a baking dish and let the oven do the work.
  • Hands-Off Cooking – Once it’s in the oven, you can relax while it bakes to golden perfection.
  • Great for Meal Prep – Make it ahead and store leftovers for easy reheating.

This casserole is a one-pan wonder, making it ideal for weeknight dinners, potlucks, holiday gatherings, or meal prepping. Plus, the flavors get even better the next day, making it a great make-ahead option.

If you enjoy hearty, comforting casseroles, you might also love this Vegan Green Bean Casserole Recipe, which also offers simple ingredients and delicious flavors perfect for your plant-based meals.

With its rich, savory flavors, simple ingredients, and effortless cooking process, this onion potato casserole paprika recipe is a must-try! Ready to make it? Let’s move on to the ingredients and step-by-step instructions.

Ingredients You’ll Need

Ingredients for onion potato casserole on a wooden countertop
Essential ingredients for making a flavorful onion potato casserole.

Making this onion potato casserole paprika recipe is easy because it uses simple, wholesome ingredients that come together to create a rich, savory, and comforting dish. Whether you’re preparing this for a cozy weeknight meal or a special occasion, these plant-based ingredients will ensure your casserole is flavorful and satisfying. Let’s take a closer look at what you’ll need.

Main Ingredients

These key ingredients form the base of this delicious onion potato casserole paprika recipe:

  • Potatoes – The star ingredient! Yukon Gold potatoes create a creamy texture, while Russet potatoes turn soft and fluffy when baked. Slice them evenly for the best results.
  • Onions – Sweet or yellow onions work best, adding a natural sweetness that complements the smoky paprika. They also caramelize slightly while baking, enhancing the flavor.
  • Paprika – This spice brings warmth, color, and depth to the dish. You can use regular paprika for a mild flavor or smoked paprika for an extra layer of richness.
  • Garlic – Fresh minced garlic infuses the casserole with bold, aromatic notes. If you prefer a milder taste, roasted garlic works beautifully too.
  • Plant-Based Milk – A dairy-free alternative to traditional cream, plant-based milk (such as almond, oat, or cashew milk) adds moisture and a slight creaminess to the casserole. Unsweetened varieties work best for a savory dish.

These essential ingredients provide the perfect balance of creaminess, smokiness, and natural sweetness, making this dish a go-to vegan comfort food.

Optional Add-Ins for Extra Flavor & Texture

Want to take your onion potato casserole paprika recipe to the next level? Try adding these optional ingredients for even more flavor and texture:

  • Vegan Cheese – A sprinkle of shredded dairy-free cheese adds a melty, creamy finish.
  • Nutritional Yeast – A great alternative to cheese, nutritional yeast gives the casserole a subtle cheesy, umami-rich taste.
  • Breadcrumbs – For a crispy golden topping, add a layer of breadcrumbs before baking. Use panko or homemade breadcrumbs for extra crunch.
  • Fresh Herbs – Garnish with fresh parsley, thyme, or chives for a pop of color and freshness.

These add-ins enhance the dish’s taste and texture while keeping it 100% plant-based.

Substitutions & Variations

If you’d like to customize this onion potato casserole paprika recipe, here are some easy ingredient swaps to fit your taste preferences or dietary needs:

  • Sweet Potatoes Instead of Regular Potatoes – Swap Yukon Gold or Russet potatoes for sweet potatoes for a naturally sweeter and nutrient-rich version.
  • Smoked Paprika for Extra Depth – If you love bold, smoky flavors, use smoked paprika instead of regular paprika. It adds a deeper, more complex taste.
  • Coconut Milk for Extra Creaminess – If you want a richer, creamier texture, swap plant-based milk with full-fat coconut milk.
  • Caramelized Onions for a Sweeter Taste – If you prefer a deeper, slightly sweet flavor, caramelize the onions before layering them into the casserole.

If you’re also a fan of sweet potato casseroles, check out this Ruth Chris Sweet Potato Casserole for another easy, plant-based recipe to try!

With these customization options, you can easily tweak this onion potato casserole paprika recipe to suit your preferences while keeping it vegan and delicious.

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Now that you have your ingredients ready, let’s move on to the step-by-step instructions to make this easy, one-pan casserole!

How to Make Onion Potato Casserole (5 Simple Steps)

This onion potato casserole paprika recipe is incredibly easy to make with just five simple steps. With minimal prep and hands-off baking, you’ll have a warm, comforting, and flavorful plant-based casserole ready to serve. Let’s walk through the process!

Prepare the Ingredients – Slice Potatoes and Onions Evenly

To ensure even cooking and a perfect texture, start by prepping the potatoes and onions:

  • Wash and peel the potatoes (optional – the skin adds fiber and texture).
  • Slice the potatoes into thin, uniform rounds (about ⅛ to ¼ inch thick). A mandoline slicer works great for this!
  • Peel and thinly slice the onions into rings or half-moons, depending on your preference.
  • If using garlic, mince it finely or crush it into a paste for a stronger flavor.

Evenly sliced potatoes and onions allow for consistent baking, ensuring every bite is perfectly tender and flavorful.

Make the Seasoning Mix – Combine Olive Oil, Paprika, Garlic, and Plant-Based Milk

The flavor of this onion potato casserole paprika recipe comes from a simple yet delicious seasoning mix that enhances every layer.

  • In a small bowl, whisk together:
    • Olive oil (or melted vegan butter) for richness
    • Paprika (regular or smoked) for depth of flavor
    • Minced garlic for an aromatic boost
    • Salt and black pepper for seasoning
    • Plant-based milk (such as oat, almond, or cashew) for creaminess

Pro Tip: If you want a cheesier flavor, stir in nutritional yeast or a bit of dairy-free cheese into the seasoning mix before pouring it over the potatoes.

Layer & Assemble – Arrange Potatoes and Onions in a Casserole Dish

Now it’s time to assemble your onion potato casserole paprika recipe:

  • Preheat the oven to 375°F (190°C).
  • Lightly grease a casserole dish with olive oil or vegan butter.
  • Start layering:
    • Arrange a layer of potato slices, slightly overlapping them.
    • Sprinkle some onions evenly over the potatoes.
    • Drizzle a bit of the seasoning mix on top.
  • Repeat the layering process until all the potatoes, onions, and seasoning mix are used up.
  • If using vegan cheese, sprinkle some between layers for extra creaminess.

This layering method ensures that every bite is packed with flavor, creaminess, and the perfect balance of potato and onion goodness.

Bake to Perfection – Cover and Bake Until Tender

Time to let the oven do the work!

  • Cover the casserole dish with aluminum foil or a lid to trap moisture, allowing the potatoes to cook evenly.
  • Bake for 35-45 minutes until the potatoes become fork-tender.
  • Remove the cover and bake for an additional 10-15 minutes to let the top brown slightly for a golden, crispy finish.

Pro Tip: If you want a crispy topping, remove the foil and broil for the last 5 minutes.

Final Touches – Add Vegan Cheese or Breadcrumbs for Extra Flavor

For the ultimate crunchy and cheesy finish, add your final toppings:

  • Vegan cheese: Sprinkle shredded dairy-free cheese on top and return to the oven until melted.
  • Breadcrumbs: For a crispy, golden crust, sprinkle breadcrumbs (panko works great!) before the last 10 minutes of baking.
  • Fresh herbs: Garnish with chopped parsley or chives for a fresh burst of color and flavor.

After baking, let the casserole rest for 5-10 minutes before serving—this helps the layers set and makes slicing easier.

And that’s it! Your onion potato casserole paprika recipe is now hot, creamy, and ready to enjoy. Serve it as a main dish with a side salad, or as a comforting side for any meal.

Next, let’s look at some pro tips to make this casserole even better!

Tips for the Best Onion Potato Casserole

Garnishing a baked onion potato casserole with fresh herbs
Finishing touches on a perfectly baked onion potato casserole.

Want to make the perfect onion potato casserole paprika recipe every time? Here are some pro tips to ensure your dish turns out creamy, flavorful, and perfectly baked. From choosing the right potatoes to prepping ahead, these expert tips will take your plant-based casserole to the next level!

Use the Right Potatoes – Yukon Gold or Russet Work Best

The type of potatoes you use can make or break your casserole. Here’s why Yukon Gold and Russet potatoes are the best choices for this onion potato casserole paprika recipe:

  • Yukon Gold Potatoes:

    • Naturally creamy and buttery in texture.
    • Hold their shape well after baking.
    • Perfect for a soft yet structured casserole.
  • Russet Potatoes:

    • High in starch, making them light and fluffy.
    • Absorb flavors beautifully, enhancing the seasoning.
    • Create a soft, melt-in-your-mouth texture.

Avoid waxy potatoes (like red or new potatoes), as they don’t soften as well and may not absorb the paprika-seasoned sauce properly.

Even Slicing Matters – Ensures Even Cooking

For a perfectly baked casserole, make sure to slice your potatoes and onions evenly. If some slices are too thick and others too thin, they will cook unevenly, leaving you with undercooked or mushy potatoes.

  • Use a Mandoline Slicer: This ensures uniform potato slices (around ⅛ to ¼ inch thick) for consistent texture.
  • Hand-Slicing Tip: If using a knife, aim for equal thickness and avoid cutting some slices thicker than others.
  • Layer Evenly: When assembling the casserole, overlap slices slightly to ensure even cooking.

Even slicing guarantees that every bite of this onion potato casserole paprika recipe is soft, flavorful, and perfectly cooked.

Don’t Skip the Paprika – Adds Warmth and Depth to the Dish

Paprika is the key flavor booster in this onion potato casserole paprika recipe. It adds a deep, warm, slightly smoky taste that pairs beautifully with the sweet onions and creamy potatoes.

Which Paprika Should You Use?

Regular Paprika – Mild and slightly sweet, great for a balanced flavor.
Smoked Paprika – Adds a rich, smoky depth for a bolder taste.
Hungarian Paprika – Slightly spicier, for those who love a bit of heat.

Pro Tip: Mix paprika with olive oil, garlic, and plant-based milk for a flavor-packed seasoning blend that coats every potato layer evenly.

Skipping paprika would dull the dish, so be sure to use it generously for that signature warmth and color!

Make It Ahead – Can Be Prepped a Day in Advance for Meal Planning

Need a stress-free meal prep option? This onion potato casserole paprika recipe is perfect for making ahead!

Make Ahead Instructions:

  • Assemble the casserole (layer the potatoes, onions, and seasoning) up to 24 hours in advance.
  • Cover tightly with foil or plastic wrap and refrigerate overnight.
  • When ready to bake, let it sit at room temperature for 15 minutes, then bake as directed.

Storage & Reheating:

  • Leftovers keep well in the fridge for 3-4 days.
  • Reheat in the oven at 350°F (175°C) for 10-15 minutes for best results.
  • Add a splash of plant-based milk before reheating to keep it creamy.

This make-ahead option makes it perfect for meal planning, holidays, or busy weeknights when you need a quick, delicious meal!

Pro Tip: If you’re looking for a great, high-protein option to pair with this casserole, check out this High-Protein Crock Pot Recipe for a complete, satisfying meal!

By following these tips, your onion potato casserole paprika recipe will turn out rich, flavorful, and perfectly baked every time! Now, let’s move on to how to serve and store this delicious plant-based casserole.

Serving & Storage Suggestions

A plated onion potato casserole with a side of fresh greens
A serving of onion potato casserole with meal prep storage tips.

Once you’ve baked your delicious onion potato casserole paprika recipe, it’s time to serve it up and enjoy! This warm, comforting plant-based dish pairs beautifully with a variety of sides, making it a versatile meal for any occasion. Plus, if you have leftovers, this casserole stores and reheats well for easy meal prep.

Pairing Ideas: Serve with a Fresh Salad or Roasted Veggies

This onion potato casserole paprika recipe is hearty and flavorful, making it an excellent main dish or side. To balance its rich, creamy texture, consider pairing it with fresh, crisp, or roasted sides.

Great Pairings for a Well-Rounded Meal:
Fresh Green Salad – A simple side salad with leafy greens, cherry tomatoes, cucumbers, and a tangy vinaigrette adds a refreshing contrast.
Roasted Vegetables – Oven-roasted carrots, asparagus, or Brussels sprouts bring extra color and nutrients to your meal.
Steamed Greens – Serve with sautéed spinach, kale, or Swiss chard for added fiber and vitamins.
Crusty Bread – A slice of whole-grain or sourdough bread complements the creamy casserole and is perfect for soaking up the flavors.

Pro Tip: If serving this casserole for a holiday feast, pair it with plant-based protein sources like baked tofu, lentil loaf, or vegan meatballs for a balanced meal.

Storage Tips: Keeps in the Fridge for Up to 3 Days

If you have leftovers, this onion potato casserole paprika recipe stores well and maintains its great taste for several days.

Refrigeration:

  • Allow the casserole to cool completely before storing.
  • Transfer to an airtight container or cover the casserole dish with foil.
  • Store in the refrigerator for up to 3 days.

Freezing (Optional):

  • For longer storage, you can freeze the casserole for up to 1 month.
  • Slice into portions, wrap them in foil, and place them in a freezer-safe container.
  • Thaw in the fridge overnight before reheating.

Reheating Instructions: Best Reheated in the Oven for Crispiness

To keep your onion potato casserole paprika recipe as delicious as when it was freshly baked, follow these best reheating methods:

Oven Method (Best for Crispiness):

  • Preheat oven to 350°F (175°C).
  • Place the casserole (or slices) in an oven-safe dish.
  • Cover with foil to prevent drying out.
  • Bake for 15-20 minutes or until heated through.
  • Remove the foil in the last 5 minutes to restore crispiness on top.

Stovetop Method (Quick & Easy):

  • Place slices in a non-stick pan over medium heat.
  • Add a splash of plant-based milk if needed for moisture.
  • Cover and heat for 5-7 minutes, flipping halfway through.

Microwave Method (Fastest but Softens the Texture):

  • Place a portion on a microwave-safe plate.
  • Cover with a damp paper towel to retain moisture.
  • Heat in 30-second intervals until warmed through.

Pro Tip: If reheating from frozen, let the casserole thaw overnight in the fridge before using one of the reheating methods above.

If you’re looking for another quick side dish to pair with this casserole, try making this Easy Vegan Canned Green Beans Recipe for a simple, plant-based addition to your meal!

With these serving and storage tips, you can enjoy your onion potato casserole paprika recipe fresh, flavorful, and perfectly reheated every time! Now, let’s look at some common questions and troubleshooting tips to make this dish foolproof.

Conclusion

This onion potato casserole paprika recipe is a must-try for anyone who loves comforting, flavorful, and easy-to-make plant-based meals. With its tender layers of potatoes and onions, perfectly seasoned with smoky paprika and garlic, this dish delivers rich taste and satisfying texture in every bite. Whether you’re serving it as a main course or a hearty side, it’s a fantastic addition to any meal.

One of the best things about this recipe is how simple and versatile it is. Made with pantry staples like potatoes, onions, and plant-based milk, it requires minimal effort but delivers maximum flavor. You can easily customize it by adding vegan cheese, nutritional yeast, or a crispy breadcrumb topping to make it even more indulgent. Plus, it’s an excellent make-ahead meal, making weeknight dinners and meal planning easier.

If you haven’t tried this onion potato casserole paprika recipe yet, now is the perfect time! Whether you’re cooking for your family, meal-prepping for the week, or looking for a delicious plant-based dish for a gathering, this casserole won’t disappoint. Give it a try, and let us know how it turned out! Leave a comment and rating below—we’d love to hear your thoughts and any variations you tried. Happy cooking!

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