Famous Mushroom Casserole

Prep: 30 min Cook: 45 min Serves: 8 Cuisine: American

A hearty mushroom casserole featuring layered bread, cheese, and savory mushrooms, baked to perfection—ideal for family dinners or special occasions with rich flavors and comforting textures.

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Ingredients

  • 12 slices white bread, crusts removed and cubed
  • 5 beaten eggs
  • 2 1/2 cups milk
  • 1 teaspoon salt
  • 1/4 teaspoon pepper
  • 1/2 teaspoon dry mustard
  • paprika
  • pinch red pepper
  • 1/2 pound sharp Cheddar cheese, grated and divided
  • 1/2 cup melted butter, divided
  • 1 pound fresh mushrooms
  • 2 tablespoons butter
  • dash Worcestershire sauce
  • 1 teaspoon prepared mustard
  • 1 teaspoon lemon juice

Instructions

  1. Place half of the bread cubes in the bottom of a buttered 2-quart baking dish.
  2. In a bowl, beat together eggs, milk, salt, pepper, dry mustard, and red pepper.
  3. Sauté the stems and caps of the mushrooms in 2 tablespoons of butter until tender.
  4. Season the mushrooms with Worcestershire sauce, prepared mustard, and lemon juice.
  5. Layer the mushroom stems over the cheese in the baking dish.
  6. Add the remaining bread cubes, egg mixture, half of the grated cheese, and 1/4 cup of melted butter.
  7. Top with the mushroom caps and sprinkle with paprika.
  8. Refrigerate for 8 hours to 2 days.
  9. Bake at 350°F for 45 minutes.
  10. Top with mushroom soup before serving.

Tips & Substitutions

For added flavor, consider using a mix of mushrooms, such as shiitake or cremini, alongside the fresh mushrooms. If you're short on time, pre-packaged cubed bread can save prep time. You can also substitute half-and-half for a richer custard base instead of milk. Don't skip the refrigeration step, as it allows the flavors to meld beautifully.

Serving Suggestions

This casserole is perfect as a hearty brunch dish, paired with a fresh green salad or steamed vegetables. It also goes well with a side of fruit to balance the richness. For a unique twist, serve alongside the Sugar-Free Strawberry Cheesecake Pie for a delightful finish to your meal.

Storage & Reheating

Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place the casserole in a preheated oven at 350°F for about 20-30 minutes, or until heated through. For a quicker option, microwave individual portions for 1-2 minutes, checking periodically to avoid overheating.

Nutrition & Diet Analysis (per serving)

Each serving of Famous Mushroom Casserole contains roughly 640 calories, with 16g protein, 125g carbohydrates, and 12g fat. It is an excellent source of vitamin A (87% of the Daily Value), iron (56% of the Daily Value), and dietary fiber (45% of the Daily Value). Note that it is relatively high in sodium, at 861mg per serving (37% of the Daily Value).

640 kcal 32% DV
Protein Fat Carbs

Macronutrients

Protein 16.4g 33% DV
Total Fat 11.8g 15% DV
Carbs 125.4g 46% DV
Fiber 12.5g 45% DV
Sugar 12.3g 25% DV

Electrolytes

Sodium 860.9mg 37% DV
Potassium 1332.5mg 28% DV
Cholesterol 196.9mg 66% DV

Vitamins & Minerals

Vitamin A 785.8mcg 87% DV
Vitamin C 34.3mg 38% DV
Vitamin D 0.3mcg 1% DV
Calcium 362.5mg 28% DV
Iron 10.1mg 56% DV
Diet fit High-fiber Low-fat
Contains Milk Egg Wheat/Gluten

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 use a different type of cheese?

Absolutely! While sharp Cheddar adds a nice depth of flavor, feel free to experiment with Gruyère, Monterey Jack, or even a non-dairy cheese for a vegetarian option. Each will give the casserole a distinct taste, so choose one that fits your preference.

How can I make this dish vegetarian?

This recipe is already vegetarian-friendly, but ensure to use vegetable broth instead of any meat-based sauces if you choose to add additional flavoring. You can also incorporate more vegetables, such as spinach or bell peppers, for extra nutrition.

Can I prepare this casserole ahead of time?

Yes! This dish is perfect for making ahead. After assembling, cover it tightly and refrigerate for up to 2 days before baking. This allows the flavors to develop. Just remember to add a few extra minutes to the baking time if starting from the fridge.

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).

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