Egg-Spinach Casserole
A hearty, cheesy egg casserole featuring spinach, mushrooms, and crunchy croutons, baked to perfection. This dish offers a savory combination of flavors, making it ideal for breakfast, brunch, or brunch-for-dinner. Its easy preparation and wholesome ingredients appeal to family gatherings and weekend brunches.
Ingredients
Instructions
- Thaw the spinach and place it in a 9 x 13-inch Pyrex pan.
- Spread the chopped mushrooms on top of the spinach.
- Crumble the croutons and sprinkle them over the mushrooms.
- Beat the eggs with the dry mustard, salt, and pepper.
- Pour the egg mixture over the ingredients in the pan.
- Pour the milk over the casserole.
- Sprinkle the grated Cheddar cheese on top.
- Bake at 350°F for 35 minutes or until done.
Tips & Substitutions
For added flavor, consider sautéing some onions or garlic before adding to the casserole. You can substitute the frozen spinach with fresh spinach, but be sure to cook it down first. If you're short on time, pre-cooked or leftover vegetables can also work well. To make it lighter, swap whole milk for a lower-fat alternative or use plant-based milk for vegetarian recipes.
Serving Suggestions
Serve the Egg-Spinach Casserole with a light salad or fresh fruit for a balanced meal. It pairs beautifully with Frozen Pineapple Salad for a sweet contrast. For a heartier option, consider adding crispy bacon or sausage on the side. This dish is perfect for brunch or as a make-ahead breakfast for busy mornings.
Storage & Reheating
Store leftovers in an airtight container in the refrigerator for up to 3-4 days. To reheat, place individual portions in the microwave for 1-2 minutes, or bake in the oven at 350°F until heated through, about 15-20 minutes. This casserole also freezes well; simply wrap tightly and thaw overnight before reheating.
Nutrition & Diet Analysis (per serving)
Each serving of Egg-Spinach Casserole contains roughly 714 calories, with 33g protein, 62g carbohydrates, and 38g fat. It is an excellent source of vitamin D (108% of the Daily Value), vitamin C (72% of the Daily Value), and protein (66% of the Daily Value), and a good source of dietary fiber and iron. Note that it is relatively high in sodium, at 2156mg per serving (94% of the Daily Value).
Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.
* % Daily Values based on a 2,000 calorie diet (FDA 2020).
Frequently Asked Questions
Can I make this casserole ahead of time?
Absolutely! You can prepare the casserole the night before and store it in the refrigerator. Just bake it in the morning for a quick and easy breakfast. If you want to prepare it further in advance, consider freezing it before baking. Just remember to thaw it in the fridge overnight before baking.
What can I substitute for the Cheddar cheese?
If you're looking for a different cheese, try using Monterey Jack, feta, or even a dairy-free cheese alternative. Each will lend a unique flavor to the casserole. If you enjoy a sharper taste, aged Gouda or Gruyère would be excellent choices to enhance the dish.
Is this casserole suitable for vegetarians?
Yes, this Egg-Spinach Casserole is a vegetarian recipe since it contains no meat. However, always check the croutons to ensure they're vegetarian-friendly, as some brands may use animal-based ingredients. This dish is hearty enough to serve as a main dish for vegetarians or as a side for meat dishes.
Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).