Name: Egg and Potato Breakfast Casserole (Vegetarian Recipe) Recipe
Prep time: 20 min
Cook time: 45 min
Total time: 1 h 5 min
Cuisine: American
Ingredients: ½ red bell pepper, sliced; ½ green bell pepper, sliced; ½ yellow bell pepper, sliced; 2 cups hash browns; 3 cups baby spinach; ½ cup cherry tomatoes, halved; ¼ cup peas; 6 eggs; ¼ cup sour cream; ½ cup milk; 1 tablespoon olive oil; ½ cup cheddar cheese, shredded; Salt and pepper to taste

Jump to Recipe· 4.3 from 264 reviews

If you are searching for a wholesome and colorful start to your day, this Egg and Potato Breakfast Casserole (Vegetarian Recipe) Recipe is an absolute winner. It combines tender hash browns, vibrant bell peppers, fresh spinach, and luscious eggs baked to perfection with creamy cheese and sour cream. This dish delivers a harmonious blend of textures and flavors that feels both comforting and nourishing, making your breakfast table come alive with every bite.

Ingredients You'll Need

A black skillet with thin layers of cooked shredded potatoes arranged unevenly in a ring shape around the center. Mixed within the potatoes are thin slices of colorful bell peppers in green, red, and yellow, adding bright streaks across the dish. The potatoes appear soft with a light golden texture in some places. The skillet rests on a surface with a white marbled texture. Near the skillet, there is a small white bowl filled with fresh green peas and a white creamer jug containing a light cream liquid. Photo taken with an iphone --ar 4:5 --v 7

These ingredients are wonderfully straightforward, yet each one plays a crucial role in creating the perfect balance of flavor, texture, and visual appeal in this casserole. From the crispness of the bell peppers to the creamy richness of the cheese and eggs, every element contributes to the magic of this dish.

Olive oil: Provides a smooth base to gently soften the peppers and hash browns without adding heaviness.

Red, green, and yellow bell peppers: These add a burst of sweetness, beautiful color, and a slight crunch that lifts the entire dish.
Hash browns: The comforting foundation with crispy edges that soak up every delicious flavor.
Eggs: Bind everything together while adding a rich, fluffy texture critical to any breakfast casserole.

Baby spinach: Fresh and vibrant, it balances richness with a delicate earthiness and adds nutrients.
Cherry tomatoes: Juicy and tangy, they punctuate the casserole with little pops of freshness.
Peas: Sweet, tender, and colorful, these small gems enhance texture variety and flavor.

Sour cream: Introduces subtle creaminess and a slight tang to elevate the dish’s savoriness.
Cheddar cheese: Melted to perfection, it brings gooeyness and a sharp, satisfying bite.
Milk: Lightens the egg mixture, helping create that tender, custard-like structure.

Salt and pepper: Essential for seasoning, they brighten and deepen all the flavors.

How to Make Egg and Potato Breakfast Casserole (Vegetarian Recipe) Recipe

Step 1: Prepare the Oven and Vegetables

Start by preheating your oven to 180ºC. This ensures your casserole will bake evenly and develop a golden crust. While the oven warms, heat olive oil in a non-stick skillet and sauté the sliced red, green, and yellow bell peppers. Cook them gently for about 7 to 10 minutes until they are soft and just starting to caramelize. This step unlocks their natural sweetness which will shine throughout the casserole.

Step 2: Add Hash Browns

To the softened peppers, add your hash browns and cook for an additional 7 to 10 minutes. This gives the potatoes a slightly crisp texture on the edges while mingling the flavors of the sweet peppers and the starchiness of the potato. It’s the perfect base layer full of robust breakfast vibes!

Step 3: Combine Eggs and Vegetables

Transfer the pepper and potato mixture to a large bowl. Crack the eggs directly into the bowl and begin mixing. This step is where everything starts coming together — the eggs will envelope the tender vegetables and act as the glue in your casserole.

Step 4: Add the Greens, Dairy, and Seasoning

Next, fold in the baby spinach, halved cherry tomatoes, peas, sour cream, shredded cheddar, milk, and season everything with salt and pepper. Stir gently but thoroughly until the mixture is uniform in color and texture. The spinach wilts slightly into the mixture, and the cheese and sour cream create a luscious creaminess.

Step 5: Bake to Perfection

Pour the entire mixture into a baking dish, spreading it evenly to ensure uniform cooking. Bake for approximately 35 minutes until the casserole puffs up and turns a gorgeous golden brown on top. You’ll know it’s ready once a knife inserted in the center comes out clean and the edges look lightly crisped.

How to Serve Egg and Potato Breakfast Casserole (Vegetarian Recipe) Recipe

The image shows a golden brown baked vegetable frittata in an oval white ceramic dish placed on a wooden board. The frittata has visible layers of yellow egg with bright green spinach leaves, green peas, and slices of red cherry tomatoes spread evenly throughout. The edges are slightly browned and crisp, giving texture contrast. The dish is on a white marbled surface with a white cloth napkin partially visible to the left and two metal forks to the right. The colors are warm and fresh, with the green and red vegetables standing out against the creamy yellow egg base. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Adding fresh garnishes like chopped chives, a sprinkle of paprika, or even a dollop of sour cream can really elevate this casserole. These small touches add layers of flavor and a vibrant, inviting look that will impress anyone at your breakfast table.

Side Dishes

You can round out your breakfast by serving this casserole alongside fresh fruit salad, crispy toasted bread, or a light green side salad for a perfect balance of flavors and textures. Each side harmonizes with the casserole's richness and adds variety to your morning meal.

Creative Ways to Present

Try baking the casserole in individual ramekins for single servings that look elegant and make portioning a breeze. Alternatively, add a sprinkle of toasted nuts or seeds on top before baking for an unexpected crunch that delights the palate.

Make Ahead and Storage

Storing Leftovers

This Egg and Potato Breakfast Casserole (Vegetarian Recipe) Recipe keeps wonderfully in the fridge for up to 3 days. Store any leftovers in an airtight container to maintain freshness and prevent the casserole from drying out.

Freezing

If you want to enjoy this casserole later, it freezes beautifully. Wrap it tightly in plastic wrap and aluminum foil or transfer to a freezer-safe container. It will keep well for up to 2 months. Just thaw it overnight in the fridge before reheating.

Reheating

Reheat your casserole in the oven at 180ºC for about 15 to 20 minutes or until warmed through, so it retains that freshly baked texture. You can also microwave individual portions, but keep in mind the oven method keeps it tasting its best.

FAQs

Can I make this casserole vegan?

Absolutely! Substitute the eggs with a vegan egg replacer or tofu, use a plant-based cheese alternative, and replace the sour cream with a dairy-free yogurt or cream to keep this dish entirely plant-based and delicious.

What can I use instead of hash browns?

If you don’t have hash browns on hand, diced or shredded potatoes work just as well. Just make sure to sauté them until tender before mixing to ensure they cook fully in the casserole.

Is it possible to add other vegetables?

Yes! Feel free to toss in mushrooms, zucchini, or even some finely chopped onions for extra flavor and variety. This recipe is very flexible and welcomes your favorite veggies.

How do I know when the casserole is cooked through?

The casserole is done when the top is golden brown and a knife or toothpick inserted in the center comes out clean, without any runny egg mixture. The edges should look slightly crisp, creating a lovely contrast to the soft interior.

Can I prepare this the night before?

Definitely! You can mix all the ingredients and keep the dish covered in the refrigerator overnight. Just pop it into the preheated oven in the morning; you might need to add a few extra minutes to the baking time.

Final Thoughts

Nothing beats the warm, inviting charm of the Egg and Potato Breakfast Casserole (Vegetarian Recipe) Recipe as a way to start your day. It’s cozy yet fresh, colorful yet simple, and best of all, it’s packed with wholesome, nourishing ingredients that feel like a hug on your plate. Give it a try soon—you might just discover your new favorite breakfast tradition!

Egg and Potato Breakfast Casserole (Vegetarian Recipe) Recipe

Ingredients You'll Need