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A close-up of a portion of overnight breakfast casserole, showcasing layers and textures on a light wood board.

18 Overnight Breakfast Casseroles for Stress-Free Mornings

A collection of delicious and easy overnight breakfast casseroles designed to make your mornings stress-free and flavorful.
Print Recipe Pin Recipe
Prep Time 30 minutes
Cook Time 50 minutes
Total Time 1 hour 20 minutes
Servings: 8 servings
Course: Breakfast
Cuisine: Various
Calories: 350
Ingredients Method Notes

Ingredients
  

Meat and Dairy
  • 500 g beef sausage
  • 200 g shredded cheese
  • 150 g shredded cheddar cheese
  • 100 g Swiss cheese
  • 250 ml milk
  • 6 eggs eggs
  • 150 g bread cubes
  • 200 g frozen hash browns
  • 100 g diced onions
  • 100 g extra cheese
  • 150 g bell peppers
  • 150 g mushrooms
  • 100 g spinach
  • 250 g croissants
  • 150 g diced turkey ham
  • 100 g sun-dried tomatoes
  • 200 g diced potatoes
  • 150 g crispy turkey bacon
  • 150 g blueberries
  • 100 g cream cheese
  • 2 tsp vanilla extract
  • 1 tsp cinnamon
  • 250 g diced apples
  • 150 g diced sweet potatoes
  • 150 g caramelized onions
  • 150 g fresh broccoli florets
  • 150 g cubed bread
  • 150 g sliced bananas
  • 50 g chopped nuts
  • 200 g mushrooms
  • 150 g Gruyère cheese
  • 300 g pumpkin puree
  • 250 g Italian beef sausage
  • 150 g mozzarella cheese
  • 100 g basil leaves
  • 250 g bagel pieces
  • 100 g smoked salmon
  • 50 g capers
  • 10 g dill

Method
 

  1. Layer cooked sausage and bread cubes in a greased dish, then whisk eggs, milk, salt, and pepper. Pour over layers and top with cheese.
  2. Cover and refrigerate overnight. In the morning, bake at 350°F (175°C) for 40-50 minutes until eggs are set and top is golden.
  3. Mix hash browns with cheese, onions, eggs, and milk. Pour into a greased dish, top with extra cheese, refrigerate overnight, then bake at 375°F (190°C) for 45 minutes.
  4. Combine chopped vegetables with eggs, milk, salt, and pepper. Pour into dish, top with cheese, refrigerate overnight, then bake at 350°F (175°C) for 35-45 minutes.
  5. Layer croissants with turkey ham and Swiss cheese. Mix eggs, milk, mustard, salt, and pepper, pour over, refrigerate overnight, then bake at 350°F (175°C) for 40 minutes.
  6. Mix spinach, sun-dried tomatoes, eggs, and milk. Pour into dish, refrigerate overnight, then bake at 350°F (175°C) for 35-45 minutes.
  7. Cut cinnamon rolls, arrange in dish, whisk eggs, milk, vanilla, cinnamon, pour over, refrigerate overnight, then bake at 350°F (175°C) for 30-35 minutes.
  8. Layer potatoes and bacon, top with cheese, whisk eggs and milk, pour over, refrigerate overnight, then bake at 375°F (190°C) for 45-50 minutes.
  9. Roast sweet potatoes, mix with bacon, onions, eggs, and milk. Pour into dish, refrigerate overnight, then bake at 350°F (175°C) for 40-45 minutes.
  10. Mix broccoli, cheese, eggs, and milk, pour into dish, refrigerate overnight, then bake at 350°F (175°C) for 30-35 minutes.
  11. Layer bread, bananas, and nuts, whisk eggs, milk, vanilla, pour over, refrigerate overnight, then bake at 350°F (175°C) for 40-45 minutes.
  12. Sauté mushrooms, mix with Gruyère, eggs, and milk, pour into dish, refrigerate overnight, then bake at 350°F (175°C) for 30-35 minutes.
  13. Mix pumpkin, spices, eggs, milk, and bread, pour into dish, refrigerate overnight, then bake at 350°F (175°C) for 40-45 minutes.
  14. Brown sausage, combine with mozzarella, eggs, milk, basil, pour into dish, refrigerate overnight, then bake at 350°F (175°C) for 40 minutes.
  15. Layer bagel pieces with smoked salmon, cream cheese, capers, and dill. Whisk eggs and milk, pour over, refrigerate overnight, then bake at 350°F (175°C) for 40 minutes.

Notes

Prepare the casseroles the night before for a quick and easy breakfast.