How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Baked Mushroom Casserole?

You need 11 ingredients. The key ingredients include: 1 lb fresh mushrooms (sliced), 1 large onion (chopped), 1/4 cup butter (4 Tbs), 2 eggs (lightly beaten), and more.

Is Baked Mushroom Casserole suitable as soups & stews?

Yes, Baked Mushroom Casserole falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover Baked Mushroom Casserole?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Baked Mushroom Casserole Recipe

Name: Baked Mushroom Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 lb fresh mushrooms (sliced); 1 large onion (chopped); 1/4 cup butter (4 Tbs); 2 eggs (lightly beaten); 1/2 cup light cream (half and half); 3/4 cup chicken broth; 1/2 teaspoon salt; 1/4 teaspoon black pepper; 1 cup saltine crumbs (about 25 squares); 4 ounces grated cheddar cheese; 1/8 teaspoon paprika

Try this homemade Baked Mushroom Casserole recipe the whole family will love. Made with mushrooms, onion, butter and eggs. Easy step-by-step instruction…

This Baked Mushroom Casserole relies on simple, everyday ingredients such as fresh mushrooms (sliced), large onion (chopped), butter (4 tbs) and eggs (lightly beaten). It comes together quickly and makes 4 servings, at about 500 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Soups & Stews

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

No specific allergen information. Please check the ingredient list for possible allergens.

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Baked Mushroom Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions