High Protein Egg Casserole

The smell of smoked paprika hitting warm eggs at seven in the morning is enough to make anyone a breakfast person, and I learned that by accident when I grabbed the wrong jar while half asleep on a rainy Tuesday.

I started making this for my roommate who swore she hated cottage cheese, and she polished off half the pan before I mentioned it was in there.

Ingredients

• 8 large eggs: The backbone of the whole dish, so grab the best ones you can find with deep orange yolks if possible.
• 1 cup cottage cheese: This is the secret weapon that makes everything creamy without needing heavy cream or excess cheese.
• 1 cup shredded cooked chicken breast or turkey sausage: Use leftovers from Sunday dinner or grab a rotisserie chicken to save time.
• 1 cup shredded reduced fat cheddar cheese: Sharp cheddar gives you more flavor punch per ounce so you can use less.
• 1 cup chopped spinach: If using frozen, squeeze it dry like your life depends on it because excess water ruins the set.
• 1/2 cup diced bell peppers: Any color works but a mix of red and yellow makes it look like you tried harder than you did.
• 1/2 cup finely chopped red onion: Finer is better here since nobody wants a giant raw onion bite hiding in their breakfast.
• 1/2 teaspoon salt: Do not skip this because eggs without salt taste like disappointment.
• 1/4 teaspoon black pepper: Freshly cracked makes a real difference that you will notice immediately.
• 1/2 teaspoon garlic powder: Powder blends into the custard better than raw garlic which can be harsh in a baked egg dish.
• 1/2 teaspoon smoked paprika: This single ingredient elevates the whole casserole from basic to something people ask about.
• 1 tablespoon olive oil or nonstick cooking spray: Just enough to keep everything from sticking and to add a tiny bit of richness.

Instructions

Preheat and prep the pan:

Crank your oven to 375 degrees and grease a 9 by 9 baking dish with olive oil, making sure to get the corners because that is where sticking happens first.

Whisk the base:

Crack all eight eggs into a big bowl, add the cottage cheese, and whisk until mostly smooth with only small curds remaining throughout.

Fold everything in:

Add the chicken or sausage, cheddar, spinach, peppers, onion, and all the spices, then stir gently until evenly distributed without overmixing.

Pour and spread:

Transfer the mixture into your prepared dish and use a spatula to spread it into an even layer so it bakes uniformly.

Bake until golden:

Slide it into the oven for about 35 minutes, watching for a slight golden top and a center that no longer jiggles when you gently shake the dish.

Rest before slicing:

Let it sit for five minutes because it will finish setting and hold its shape much better when you cut into clean squares.

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The first time I brought this to a potluck brunch, three people asked for the recipe before their plates were empty, and one of them still texts me about it every few months.

Making It Your Own

Swap the chicken for sauteed mushrooms and sun dried tomatoes if you want a vegetarian version that still feels substantial and satisfying.

Storage and Reheating

Cut the cooled casserole into squares and store them in an airtight container in the fridge for up to four days, reheating each piece in the microwave for about 60 seconds on busy mornings.

Serving Suggestions

This is rich enough to stand alone but a handful of arugula with lemon juice on the side cuts through it perfectly and makes it feel like a complete meal rather than just a slab of eggs.

• Top with sliced avocado and hot sauce for a weekend upgrade.
• Toast some sourdough while the casserole rests and use it to soak up the edges.
• Always let it cool those five minutes because patience here means clean beautiful slices.

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Once you have this in your rotation, you will stop thinking of breakfast as something complicated and start looking forward to opening the fridge instead.

Recipe FAQs

→ Can I make this egg casserole ahead of time?

Absolutely. You can assemble the casserole the night before and refrigerate it unbaked, or bake it completely and reheat individual portions throughout the week for quick breakfasts.

→ What vegetables work best in this casserole?

Spinach, bell peppers, and onions are featured, but you can also add mushrooms, zucchini, broccoli, or any vegetables your family enjoys. Just be sure to squeeze out excess moisture from watery vegetables before adding.

→ How do I know when the casserole is done baking?

The casserole is finished when the center is set and no longer jiggles, typically after 35 minutes at 375°F. The top should be lightly golden, and a knife inserted in the center should come out clean.

→ Can I freeze leftovers?

Yes, this casserole freezes well. Cut into individual portions, wrap tightly in plastic wrap and foil, and freeze for up to 3 months. Thaw overnight in the refrigerator and reheat in the microwave or oven.

→ What protein substitutions can I make?

Instead of chicken or turkey sausage, try cooked bacon, ham, ground turkey, or leave it vegetarian with extra vegetables and cheese. For a dairy-free version, omit the cottage cheese and add more eggs.