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Overnight Make Ahead Biscuit Breakfast Casserole

Overnight Make Ahead Biscuit Breakfast Casserole Delight

A delightful Overnight Make Ahead Biscuit Breakfast Casserole that brings family together with savory sausage, colorful peppers, and gooey cheese.
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Prep Time 30 minutes
Cook Time 40 minutes
Resting Time 30 minutes
Total Time 1 hour 40 minutes
Servings: 8 servings
Course: Breakfast
Cuisine: American
Calories: 350
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Casserole
  • 1 pound Ground Breakfast Sausage Cooked before layering.
  • 1 medium Onion Yellow or white for milder taste.
  • 1 medium Green Bell Pepper Substitute as desired.
  • 1 medium Red Bell Pepper Can replace with more green pepper.
  • 1.5 cups Gruyère Cheese Freshly shredded for best melting.
  • 8 pieces Stale Biscuits Day-old yields the best texture.
  • 1 teaspoon Kosher Salt
  • 1/2 teaspoon Black Pepper Can swap with white pepper.
  • 6 large Eggs Room temperature for blending.
  • 2 cups Half and Half Use heavy cream for a richer option.

Equipment

  • 9x13-inch Baking Dish
  • Large skillet
  • Mixing Bowl

Method
 

Step-by-Step Instructions
  1. Preheat your oven to 350°F (175°C) and grease a 9x13-inch baking dish.
  2. Dice the onion and both bell peppers into uniform pieces and set aside.
  3. Brown the ground sausage in a skillet for 5–7 minutes until fully cooked, then transfer to a plate.
  4. Sauté the diced onion and bell peppers in the same skillet for 3-4 minutes until softened.
  5. Break stale biscuits into bite-sized pieces and layer in the bottom of the greased baking dish.
  6. Sprinkle the browned sausage and sautéed vegetables over the biscuits.
  7. Sprinkle 1.5 cups of freshly shredded Gruyère cheese over the top.
  8. Whisk together eggs, half and half, kosher salt, and black pepper until smooth.
  9. Pour the egg mixture evenly over the casserole layers and let rest for at least 30 minutes.
  10. Bake for 35-40 minutes until the edges are golden and the center jiggles slightly.
  11. Cool for 5 minutes before serving.

Nutrition

Serving: 1sliceCalories: 350kcalCarbohydrates: 25gProtein: 15gFat: 20gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 8gCholesterol: 200mgSodium: 600mgPotassium: 350mgFiber: 2gSugar: 2gVitamin A: 500IUVitamin C: 30mgCalcium: 250mgIron: 2mg

Notes

This casserole can be prepped the night before for easy baking in the morning.

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