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This overnight breakfast casserole is loaded with fluffy bread cubes, savory bacon, melted cheese, and fresh veggies — the perfect make-ahead breakfast for busy mornings or holiday brunch gatherings.

Overnight Breakfast Casserole


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  • Author: Chef Josie
  • Total Time: 9 hours 5 minutes
  • Yield: 8 servings 1x

Description

A hearty, make-ahead breakfast casserole filled with eggs, cheese, bacon, and bread. Perfect for holiday mornings, brunches, or meal prep.


Ingredients

Scale
  • 6 eggs

  • 2 cups milk

  • 4 cups bread cubes

  • 1½ cups cheddar cheese

  • 1 cup cooked bacon

  • ½ cup bell peppers

  • ¼ cup green onions

  • Salt and pepper


Instructions

  1. Layer bread, bacon, veggies, and cheese in a baking dish.
  2. Whisk eggs, milk, and seasonings. Pour over casserole.
  3. Cover and refrigerate overnight.
  4. Bake at 350°F for 45–50 minutes.
  5. Cool slightly and serve warm.

Notes

Use day-old bread for the best texture.

Make ahead and chill overnight before baking.

Reheat leftovers for easy weekday breakfasts.

  • Prep Time: 15 minutes
  • Chill Time: 8 hours
  • Cook Time: 50 minutes
  • Category: Breakfast, Brunch
  • Cuisine: American

Nutrition

  • Calories: 370 kcal