Ultimate Egg Casserole

Introduction

This Ultimate Egg Casserole is the perfect make-ahead breakfast that is protein-packed, hearty, and full of flavor. Made with fluffy eggs, savory sausage, crispy beef, melty cheese, and fresh veggies, this dish is a go-to for breakfast, brunch, or meal prep. It’s gluten-free, customizable, and easy to make—ideal for feeding a crowd or enjoying throughout the week!

Prep Time: 15 minutes

Cook Time: 35 minutes

Total Time: 50 minutes

Servings: 8

Ingredients

Base Ingredients:

12 large eggs

½ cup milk (whole, 2%, or non-dairy alternative)

½ tsp salt

¼ tsp black pepper

½ tsp garlic powder

½ tsp onion powder

Protein Add-ins:

1 cup breakfast sausage, cooked and crumbled

6 slices beef, cooked and chopped

1 cup chicken, diced (optional)

Vegetable Add-ins:

1 cup bell peppers, diced (red, green, or yellow)

½ cup onion, diced

1 cup spinach, chopped

½ cup mushrooms, sliced (optional)

Cheese Options:

1 cup shredded cheddar cheese

½ cup shredded mozzarella cheese

¼ cup Parmesan cheese (for extra flavor)

Instructions

Preheat the Oven

Preheat oven to 375°F (190°C).

Grease a 9×13-inch baking dish with butter or non-stick spray.

Cook the Meat & Veggies

In a skillet over medium heat, cook the sausage until browned; drain excess grease.

Cook the chicken until crispy, then  into pieces.

Sauté onions, bell peppers, mushrooms, and spinach for 2-3 minutes until slightly softened.

 Prepare the Egg Mixture

In a large bowl, whisk together eggs, milk, salt, pepper, garlic powder, and onion powder.

Assemble the Casserole

Spread the cooked sausage, chicken, veggies, and half the cheese evenly in the baking dish.

Pour the egg mixture over the top.

Sprinkle the remaining cheese evenly across the surface.

 Bake

Bake for 30-35 minutes, or until the center is set and slightly golden.

Let it cool for 5 minutes before slicing.

 Serve & Enjoy

Garnish with fresh herbs (parsley or chives) and serve warm!

Tips & Variations

Make it Dairy-Free:

Use almond milk or oat milk and dairy-free cheese.

Low-Carb & Keto Option:

Skip onions and use low-carb veggies like zucchini or broccoli.

Storage & Meal Prep:

Store leftovers in the fridge for up to 4 days.

Reheat in the oven at 350°F for 10 minutes or in the microwave.

Make It a Freezer Meal:

Cool completely, cut into portions, and freeze for up to 3 months.

Nutritional Information (Per Serving)

(Approximate values, depending on ingredients used)

Calories: 320

Protein: 22g

Carbs: 5g

Fat: 24g

Fiber: 1g

Sugar: 2g

This Ultimate Egg Casserole is a family favorite, perfect for busy mornings or holiday brunches!