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Sausage Overnight Breakfast Casserole

This sausage breakfast casserole is absolutely delicious and so so easy. You'll love that it's a make ahead breakfast recipe so you assemble it the night before and allow the flavors to come together overnight and pop it in the oven in the morning. A hearty breakfast that takes no time in the morning while you enjoy your coffee.
Course Breakfast
Cuisine American
Keyword Sausage Overnight Breakfast Casserole
Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour
Servings 6 servings
Calories 523kcal


  • 1 pound sausage browned and drained
  • 6 eggs
  • 2 cups milk
  • 8 slices bread
  • 1 tsp. dry mustard
  • 1 tsp. salt
  • 1 cup grated cheddar cheese


  • Butter bread slices and press butter side down in 9x13 dish
  • Mix together eggs, mustard, milk and salt
  • Mix in cheese and sausage
  • Pour over bread slices
  • Refrigerate 8 hours or overnight
  • Bake uncovered at 350 degrees for 40-45 minutes
  • Enjoy!