High-Protein Breakfast Egg Casserole

A fluffy, filling, meal-prep friendly breakfast packed with protein, veggies, and flavor.


 Ingredients (6 servings)

Base

  • 8 large eggs
  • 1 cup egg whites (or 4 extra eggs instead)
  • ½ cup milk (any kind or unsweetened almond milk)
  • 1 cup cottage cheese (adds extra protein + creaminess)

Protein Add-ins

  • 1 cup cooked chicken breast, diced (or turkey/lean sausage)
  • ½ cup shredded cheddar or mozzarella

Vegetables

  • 1 cup spinach, chopped
  • ½ cup bell pepper, diced
  • ¼ cup onion, finely chopped
  • ½ cup mushrooms (optional)

Seasoning

  • 1 tsp salt (adjust to taste)
  • ½ tsp black pepper
  • 1 tsp garlic powder
  • 1 tsp Italian seasoning or dried oregano

 Instructions

  1. Preheat oven to 180°C (350°F). Grease a baking dish.
  2. In a large bowl, whisk eggs, egg whites, milk, and cottage cheese until smooth.
  3. Stir in chicken, vegetables, cheese, and seasonings.
  4. Pour mixture into baking dish evenly.
  5. Bake for 30–40 minutes, or until center is set and top is lightly golden.
  6. Let it cool for 5–10 minutes, then slice into squares.

 Nutrition (approx per serving)

  • High protein (about 25–35g per slice depending on add-ins)
  • Low carb
  • Rich in vitamins + calcium

 Nut Info

  •  No nuts in the base recipe
  • Nut-free friendly (safe for allergy-sensitive diets)
  • Optional topping ideas:
    • Almond flakes (crunchy topping)
    • Sunflower seeds
    • Chopped walnuts (for healthy fats)

 Serving Ideas

  • With avocado slices 🥑
  • In breakfast wraps
  • With hot sauce or salsa
  • Meal prep for 3–4 days

 Q&A

 Can I make it without chicken?

 Yes — replace with turkey, tuna, or extra cottage cheese.

 Can I freeze it?

 Yes — slice and freeze for up to 2 months.

 Can I make it dairy-free?

 Use dairy-free milk + skip cheese (or vegan cheese).

 Why add cottage cheese?

 It makes the casserole extra fluffy + boosts protein without changing taste much.


 Pro Tip

For best texture, don’t overbake — remove when center is just set (it continues cooking slightly after oven).