High Protein Egg Casserole

The smell of smoked paprika hitting eggs at seven in the morning is enough to make anyone a breakfast person. I started making this casserole on Sundays when my workout schedule demanded something substantial but effortless to reheat throughout the week. Cottage cheese in eggs sounded strange until I tried it and realized it creates this impossibly creamy, custard like texture without any heavy cream. Now it is the dish I bring to brunches, potlucks, and bleary mornings when coffee alone will not cut it.

My friend Maria took one bite at a post hike brunch and immediately demanded the recipe on a sticky note. She texted me later that week saying she had already made it twice, once with leftover chicken and once with black beans, which told me this recipe was more forgiving than I had realized.

Ingredients

• 10 large eggs: The backbone of the casserole, use fresh eggs for the best color and lift.
• 1 cup low fat cottage cheese: This is the secret weapon that makes everything creamy without needing heavy dairy.
• 1 cup cooked turkey sausage, sliced or crumbled: Lean but flavorful, brown it slightly before adding for deeper taste.
• 1 cup shredded reduced fat cheddar cheese: Sharp cheddar works best because a little goes a long way in flavor.
• 1 bell pepper, diced: Any color works but red or yellow adds natural sweetness that balances the savory elements.
• 1 cup baby spinach, chopped: It wilts down dramatically so do not worry if it looks like a lot at first.
• 1/2 cup cherry tomatoes, halved: They add little bursts of acidity that brighten each bite.
• 1/2 small red onion, diced: Milder than yellow onion, it integrates without overpowering the eggs.
• 1/2 teaspoon garlic powder: Evenly distributes garlic flavor without the risk of burning raw cloves.
• 1/2 teaspoon smoked paprika: This single spice transforms the whole dish with a subtle campfire warmth.
• 1/2 teaspoon black pepper and 1/2 teaspoon salt: Season thoughtfully since the sausage and cheese already bring sodium.
• Cooking spray or a little olive oil: Just enough to ensure nothing sticks to your baking dish.

Instructions

Preheat and prepare the dish:

Set your oven to 375 degrees F and generously coat your 9x13 inch baking dish with cooking spray or a thin layer of olive oil so nothing grabs later.

Whisk the egg base:

Crack all ten eggs into a large bowl, add the cottage cheese, and whisk vigorously until the mixture looks smooth and slightly frothy with no large curds remaining.

Fold in the fillings:

Gently stir in the turkey sausage, cheddar cheese, bell pepper, spinach, tomatoes, red onion, and all the spices until everything is evenly distributed throughout the egg mixture.

Pour and spread:

Transfer the mixture into your prepared baking dish, using a spatula to spread the vegetables and meat into an even layer so every slice is balanced.

Bake until golden:

Slide it into the oven and bake for 30 to 35 minutes, checking that the center is fully set and the top has taken on a light golden color with slightly puffed edges.

Rest and serve:

Let the casserole rest for about five minutes before slicing so it holds its shape, then serve warm squares directly from the dish.

Save

There is something deeply satisfying about pulling a golden casserole from the oven while the house still feels quiet and the coffee is fresh. It became a ritual I did not plan for, a small anchor of normalcy on otherwise chaotic weekends.

Making It Your Own

This recipe is less a strict formula and more a template for whatever protein and vegetables you have on hand. I have thrown in leftover roasted broccoli, swapped turkey sausage for diced ham, and once used pepper jack cheese when that was all the fridge offered, and every version worked beautifully.

Storage and Reheating

Cut the cooled casserole into individual portions and store them in airtight containers in the refrigerator for up to four days. A single square reheats in the microwave in about sixty seconds, making it an effortless grab and go breakfast that actually satisfies.

Serving Suggestions

This casserole stands well on its own but pairs nicely with a handful of fresh greens dressed in lemon juice and olive oil. I also love serving it with sliced avocado and a dash of hot sauce when I want something that feels more like a proper sit down meal.

• A spoonful of salsa on top adds brightness without extra effort.
• Warm whole grain toast on the side rounds things out if you are not watching carbs.
• Always let it rest before cutting or your beautiful squares will fall apart.

Save

This is the kind of recipe that earns a permanent spot in your rotation because it works hard without asking much from you. Share it with someone who thinks meal prep has to be boring.

Recipe FAQs

→ Can I make this casserole ahead of time?

Absolutely. Assemble the mixture the night before, cover tightly, and refrigerate. Bake in the morning, adding a few extra minutes if coming straight from the refrigerator.

→ What vegetables work best in this dish?

Bell peppers, spinach, tomatoes, and onions provide excellent flavor and texture. Feel free to swap in mushrooms, zucchini, broccoli, or asparagus based on preference.

→ How do I know when the casserole is done?

The center should be set without any liquid egg visible, and the top will turn lightly golden. A knife inserted near the center should come out clean.

→ Can I freeze this casserole?

Yes, freeze after baking and cooling completely. Wrap tightly and freeze for up to three months. Thaw overnight in the refrigerator before reheating.

→ What makes this high in protein?

Each serving contains ten eggs divided among six portions, plus cottage cheese, turkey sausage, and cheddar. These ingredients combine for 23 grams of protein per slice.

→ Is this suitable for a low-carb diet?

With only 5 grams of carbohydrates per serving, this casserole fits well into low-carb and ketogenic eating plans while providing substantial protein and healthy fats.