Name: Vegan Hashbrown Casserole Recipe
Prep time: 15 min
Cook time: 45 min
Total time: 1 h
Cuisine: American
Ingredients: 1 cup onion (diced); 1 teaspoon garlic (minced); ½ cup green bell pepper (diced); ½ cup red bell pepper (diced); 4 tablespoons vegan butter (divided); 3 tablespoons all-purpose flour; 2 cups non-dairy milk; 1 cup vegetable stock; Salt and black pepper (to taste); 1 ½ cups vegan shredded cheese (divided); 1 cup vegan cream; 30 ounces frozen shredded hash brown potatoes (thawed); 3 tablespoons bread crumbs

Jump to Recipe· 4.1 from 48 reviews

If you are looking for a comforting, hearty dish that brings the flavors of breakfast to your dinner table, let me introduce you to this incredible Vegan Hashbrown Casserole Recipe. It’s packed with crispy hashbrowns, vibrant bell peppers, and a creamy, cheesy sauce that melts perfectly into every bite. This casserole is a crowd-pleaser, effortlessly combining simple ingredients to create a warm, satisfying meal that anyone—even non-vegans—will adore. Perfect for weekend brunches or cozy family dinners, this recipe nails that crispy-on-top, creamy-inside texture that makes casseroles so irresistible.

Ingredients You'll Need

A black frying pan holds four groups of chopped ingredients arranged in separate sections: pale chopped onions on the left, bright green chopped bell peppers at the bottom, vibrant red chopped bell peppers on the right, and a small pile of minced garlic near the top right; a light yellow liquid, likely butter or oil, is melting at the top left edge of the pan. Surrounding the pan on a white marbled surface are small white bowls containing coarse beige powder, mixed coarse black and white pepper, and shredded pale yellow cheese, adding color contrast. Photo taken with an iphone --ar 4:5 --v 7

The beauty of this Vegan Hashbrown Casserole Recipe is how straightforward yet essential each ingredient is. Each element plays a big role in creating the perfect balance of flavors, textures, and colors—from the tender vegetables adding freshness to the creamy sauce that hugs every shredded potato.

1 cup onion (diced): Adds a sweet and savory base flavor that infuses the whole dish.

1 teaspoon garlic (minced): Gives a mellow aromatic boost that complements the vegetables.
½ cup green bell pepper (diced): Brings a crisp bite and lovely green color contrast.
½ cup red bell pepper (diced): Adds sweetness and vibrant red hues for a visually appealing casserole.

4 tablespoons vegan butter (divided): Essential for sautéing veggies and creating a rich roux for the creamy sauce.
3 tablespoons all-purpose flour: Helps thicken the sauce into a luscious, velvety consistency.
2 cups non-dairy milk: Forms the creamy base without dairy, making this recipe fully vegan.

1 cup vegetable stock: Adds depth and a savory hit to the sauce.
Salt and black pepper (to taste): The classic seasoning duo to enhance all the flavors perfectly.
1 ½ cups vegan shredded cheese (divided): Provides melty, cheesy goodness that's totally plant-based.

1 cup vegan cream: Makes the casserole ultra-creamy and indulgent.
30 ounces frozen shredded hash brown potatoes (thawed): The star of the show, delivering that iconic crispy-soft texture.
3 tablespoons bread crumbs: Creates a delicious crunchy topping that finishes the casserole beautifully.

How to Make Vegan Hashbrown Casserole Recipe

Step 1: Prep and Sauté the Vegetables

Start by preheating your oven to 350°F (180°C) and lightly greasing a 9x13-inch baking dish. In a skillet over medium heat, melt half of your vegan butter and toss in the diced onions, minced garlic, and both bell peppers. Sauté these for 2 to 3 minutes until they're soft and fragrant—the aroma here is already a promise of something delicious. Once tender, remove the veggies from the skillet and set them aside, ready to blend into the casserole later.

Step 2: Make the Creamy Roux Sauce

Now, back to the skillet where you cooked the veggies, melt the remaining vegan butter. Slowly whisk in the flour to create a silky roux—a crucial step that thickens the sauce perfectly. Gradually pour in your non-dairy milk, whisking constantly to avoid lumps, then add the vegetable stock. Season with salt and black pepper while stirring until the sauce thickens slightly. Stir in half of the vegan shredded cheese so it melts smoothly into this creamy base. You'll want to remove it from heat once it reaches a nice thick consistency.

Step 3: Combine and Layer

In a large mixing bowl, combine your thawed hash brown potatoes with the sautéed veggies. Pour the decadent cheese sauce and vegan cream over this mixture, stirring well to ensure every shredded potato strand is coated with that luscious sauce. Transfer this hearty blend into your prepared baking dish, spreading it evenly for uniform baking.

Step 4: Top and Bake

Sprinkle the rest of your vegan shredded cheese over the top, followed by the crunchy bread crumbs. This final touch will provide that golden, bubbling crust everyone loves in a casserole. Bake everything in the preheated oven for 40 to 45 minutes until you see that beautiful golden top and the edges are bubbly with cheesy goodness. Let the casserole rest for about 10 minutes once it’s out of the oven to settle and develop more flavor before serving.

How to Serve Vegan Hashbrown Casserole Recipe

A white oval baking dish filled with a baked casserole showing a golden brown top with spots of deep red and light green pieces mixed in. The top layer looks creamy with a slightly crispy texture, sprinkled with small green herb pieces and fine crumbs evenly scattered over it. A black spoon with a hammered texture rests on the right side of the dish, partially lying on the casserole. The dish is placed on a white marbled surface, with a wooden bowl containing chopped green herbs to the upper right and a white plate with fresh basil leaves at the bottom left nearby. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

A sprinkle of freshly chopped green onions or parsley brightens the look and adds a pop of color. For an extra touch of zing, a few dashes of smoked paprika or a drizzle of vegan sour cream can elevate the flavor and make each bite even more inviting.

Side Dishes

This casserole shines on its own but pairs beautifully with a crisp mixed greens salad for freshness or roasted vegetables to keep the meal hearty yet balanced. A side of fresh fruit can also complement the richness wonderfully, particularly if serving for brunch.

Creative Ways to Present

Serve individual portions in small ramekins for a charming personal touch at dinner parties or brunch gatherings. You can also turn leftovers into tasty hashbrown sliders by pressing them into mini buns alongside your favorite plant-based deli slices and condiments.

Make Ahead and Storage

Storing Leftovers

Once cooled, cover your Vegan Hashbrown Casserole Recipe tightly with foil or transfer to an airtight container and refrigerate for up to 3 days. The flavors meld beautifully overnight, making leftovers even better the next day.

Freezing

This casserole freezes well when wrapped tightly with plastic wrap and aluminum foil or placed in a freezer-safe container. Freeze for up to 2 months. To enjoy later, thaw overnight in the fridge before reheating.

Reheating

Reheat the casserole in the oven at 350°F (180°C) for about 20-25 minutes, covered with foil to keep from drying out, until warmed through. For a quicker option, microwave individual portions on medium-high in 1-2 minute increments, stirring in between for even warmth.

FAQs

Can I use fresh potatoes instead of frozen hashbrowns?

Absolutely! If you prefer fresh potatoes, shred and rinse them thoroughly, then pat dry before using. Keep in mind this might change the texture slightly since frozen hashbrowns are partially cooked and thawed.

What kind of vegan cheese works best?

Look for a melting vegan cheese that offers a creamy texture, like shredded mozzarella-style or cheddar-style brands. These melt nicely and mimic the gooey texture that makes casseroles so comforting.

Is it possible to make this gluten-free?

Yes! Substitute the all-purpose flour with a gluten-free flour blend or cornstarch for the roux and use gluten-free bread crumbs. Just make sure your vegan cheese and other ingredients are also gluten-free.

Can I add other vegetables to the casserole?

Definitely. Feel free to toss in mushrooms, zucchini, or even spinach to boost the nutritional profile and add more layers of flavor. Just be mindful of extra moisture that might affect the casserole’s consistency.

How do I make this recipe nut-free?

This particular recipe is naturally nut-free as long as you choose a vegan cheese and milk made without nuts, like soy or oat-based alternatives. Always double-check product labels to be safe.

Final Thoughts

This Vegan Hashbrown Casserole Recipe is truly one of those dishes that feel like a warm hug on a plate. With simple ingredients transformed into a creamy, crispy, and colorful delight, it’s a recipe you’ll want to keep coming back to whether for breakfast, brunch, or dinner. Give it a try and share it with your loved ones—you’ll be amazed how quickly it disappears!

Vegan Hashbrown Casserole Recipe

Ingredients You'll Need