The Ultimate Overnight Breakfast Casserole

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The Ultimate Overnight Breakfast Casserole

This easy breakfast casserole with English muffins, ham, and Cheddar cheese is a comforting, make-ahead breakfast that's baked in the morning.

By @mattwarrenJanuary 19, 2026Source

Total Time

8 hr 45 min

Prep Time

15 min

Cook Time

30 min

Servings

8

Ingredients

  • cooking spray
  • 3 medium English muffins, split
  • 12 large eggs
  • 2 cups milk
  • ½ teaspoon salt
  • ¼ teaspoon ground black pepper
  • ¼ teaspoon garlic powder
  • ¼ teaspoon onion powder
  • ¼ teaspoon ground mustard
  • 1 pound cooked ham, diced
  • 1½ cups shredded Cheddar cheese, divided
  • ¼ cup chopped green onions

Instructions

  1. 1

    Spray a 9x13-inch baking dish with cooking spray.

  2. 2

    Arrange English muffin halves in a single layer in the bottom of the baking dish.

  3. 3

    Whisk eggs, milk, salt, pepper, garlic powder, onion powder, and mustard together in a bowl until well combined. Pour egg mixture over English muffins in the baking dish. Sprinkle chopped ham and 1 cup Cheddar cheese on top of egg mixture.

  4. 4

    Cover with foil and refrigerate overnight.

  5. 5

    Preheat the oven to 400 degrees F (200 degrees C).

  6. 6

    Bake in the preheated oven until eggs are set and the top is lightly golden, 30 to 35 minutes. Sprinkle with remaining 1/2 cup Cheddar cheese and chopped green onions. Slice and serve.

Nutrition Facts

Per serving

Calories1177
% Daily Value*
Total Fat18.1g23%
Saturated Fat5.9g30%
Cholesterol38.3mg13%
Sodium1421.4mg62%
Total Carbohydrate93.3g34%
Dietary Fiber3.6g13%
Total Sugars6.9g
Protein151.9g304%

* Percent Daily Values are based on a 2,000 calorie diet.

Nutrition calculated automatically from ingredients.

EggsBakedMake AheadFull MealBreakfastHam

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