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egg casserole recipe - Golden brown, bubbly egg casserole in a baking dish, garnished with fresh herbs, ready to be served.

Ultimate Easy Make-Ahead Egg Casserole

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This ultimate easy make-ahead egg casserole recipe is perfect for stress-free brunches and busy mornings. Customize with your favorite meats, vegetables, and cheeses for a hearty, crowd-pleasing meal.

  • Total Time: 1 hour 5 minutes
  • Yield: 8 servings 1x

Ingredients

Scale

12 large eggs
1 cup milk (whole milk or half-and-half recommended)
1/2 teaspoon salt
1/4 teaspoon black pepper
1 cup cooked breakfast sausage, crumbled, or bacon, cooked and chopped (optional)
1/2 cup chopped onion, sautéed (optional)
1/2 cup chopped bell pepper, sautéed (optional)
1 cup fresh spinach, wilted (optional)
1.5 cups shredded cheese (cheddar, Monterey Jack, Gruyère, or a blend)

Instructions

Step 1: Preheat your oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish.
Step 2: In a large mixing bowl, whisk together the eggs, milk, salt, and pepper until light yellow and slightly frothy.
Step 3: If using, spread the cooked sausage or bacon, sautéed onion, bell pepper, and wilted spinach evenly across the bottom of the prepared baking dish.
Step 4: Sprinkle the shredded cheese over the meat and vegetable layer.
Step 5: Carefully pour the whisked egg mixture over the cheese, meat, and vegetable layers. Gently shake the dish to ensure even distribution.
Step 6: Bake for 40-50 minutes, or until the center is set and a knife inserted into the middle comes out clean and the top is golden brown.
Step 7: Remove from the oven and let rest for 5-10 minutes before slicing and serving. Enjoy your ultimate easy egg casserole recipe!

Notes

This egg casserole recipe can be assembled the night before and refrigerated. Just add 10-15 minutes to the baking time if baking directly from the fridge. Feel free to experiment with different types of cheese and vegetables!

  • Prep Time: 20 minutes
  • Cook Time: 45 minutes
  • Category: Main Dishes & Savory Recipes
  • Cuisine: American

Nutrition

  • Serving Size: 1 slice
  • Calories: 320 kcal
  • Sugar: 4g
  • Sodium: 480mg
  • Fat: 22g
  • Saturated Fat: 10g
  • Unsaturated Fat: 10g
  • Trans Fat: 0.5g
  • Carbohydrates: 12g
  • Fiber: 2g
  • Protein: 20g
  • Cholesterol: 220mg
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