Description
This Egg Bake Overnight Breakfast Casserole is a hearty and customizable dish featuring sausage, vegetables, eggs, and cheese. Perfect for meal prep, it can be baked immediately, refrigerated overnight, or frozen for later. Ideal for feeding a crowd, it offers a delicious and convenient breakfast solution.
Ingredients
Scale
Meat
- 12 ounces sausage (casing removed)
Vegetables
- 2 cloves garlic (minced)
- 3 cups fresh spinach (90 g)
- 2 large bell peppers (diced)
- ½ medium yellow onion (diced)
- Salt and pepper (to taste)
Dairy
- 12 large eggs
- ½ cup milk (120 g, any type)
- ½ cup shredded cheese (56 g, any flavor; divided)
- Olive oil (for sautéing)
Instructions
- Prepare the casserole dish: Spray a 7 x 11-inch or 9 x 13-inch casserole dish with non-stick spray and set aside. If baking immediately, preheat oven to 375ºF (191ºC).
- Cook the sausage: In a large skillet over medium heat, brown the sausage until slightly cooked and browned. If using fully cooked sausage, this step can be shortened or skipped. Transfer cooked sausage evenly into the prepared casserole dish and set aside.
- Sauté vegetables: Add a little olive oil to the skillet if needed. Sauté minced garlic, fresh spinach, diced bell peppers, and diced onion until vegetables are tender and spinach is wilted, about 6-7 minutes. Season with salt and pepper during the last minute of cooking.
- Combine sausage and vegetables: Remove skillet from heat and add the cooked vegetable mixture into the casserole dish with the sausage. Stir roughly to distribute the mixture evenly.
- Mix eggs and cheese: In a medium bowl, whisk together the eggs, milk, and ¼ cup of shredded cheese. Pour this egg mixture evenly over the sausage and vegetable mixture in the casserole dish. Sprinkle the remaining ¼ cup of shredded cheese on top and add additional salt and pepper to taste.
- Bake the casserole: If not baked immediately, cover and refrigerate for up to 24 hours. When ready, preheat oven to 375ºF (191ºC). Bake casserole for approximately 45 minutes or until edges start to brown. Let cool at least 15 minutes before serving.
- Storage and reheating: Store leftovers refrigerated for up to 5 days. Reheat individual servings in the microwave as needed. This casserole can also be frozen (baked or unbaked) for up to 2 months. For unbaked frozen casserole, thaw overnight in the refrigerator and bake at 350ºF (177ºC) for about 20 minutes until heated through.
Notes
- This casserole can be customized with different vegetables, cheeses, or meats based on preferences.
- For a quicker version, use fully cooked sausage.
- You can prepare the casserole the night before and bake it fresh in the morning.
- Freezing the casserole allows easy meal prep and stress-free entertaining.
- Allow the casserole to cool before covering tightly for freezing to avoid condensation.
Nutrition
- Serving Size: 1 serving
- Calories: 197 kcal
- Sugar: 2 g
- Sodium: 303 mg
- Fat: 14 g
- Saturated Fat: 5 g
- Unsaturated Fat: 8 g
- Trans Fat: 0.1 g
- Carbohydrates: 4 g
- Fiber: 1 g
- Protein: 13 g
- Cholesterol: 223 mg
