Margaret Wood's Mushroom Casserole Recipe

A treasured recipe from Pioneer Lodge, this creamy mushroom casserole is a delightful side dish perfect for brunch buffets, potlucks, or a budget-friendly main course. Savory sauteed onions and tender mushrooms mingle in a rich, egg-custard base, baked to golden perfection. A classic comfort food that's sure to impress!

Prep Time 20 mins
Cook Time 60 mins
Calories 356 kcal
Protein 26g
Rating Be the first
Margaret Wood's Mushroom Casserole 92

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Forktionary editorial kitchen team

The Forktionary Kitchen Team

Adapted from Food.com, then tested & standardized by Forktionary.

Ingredients for Margaret Wood's Mushroom Casserole

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How to Make Margaret Wood's Mushroom Casserole

  1. Preheat oven to 350°F (175°C).
  2. Melt 4 tablespoons of margarine in a large skillet over medium heat. Add 1 medium onion, chopped, and saute until softened, about 5 minutes.
  3. In a large bowl, beat 3 large eggs until light and frothy.
  4. Add 1 (10.75 ounce) can condensed cream of mushroom soup, 1/2 cup milk, 1 teaspoon salt, 1/2 teaspoon black pepper, and 8 ounces cremini mushrooms, sliced, to the beaten eggs. Whisk until well combined.
  5. Stir in the sauteed onions.
  6. Pour the mixture into a greased 8x8 inch casserole dish.
  7. Bake uncovered for 35-40 minutes, or until the casserole is set and golden brown.

Nutrition Information (Approximate per serving)

Sodium

11 g

Sugar

12g

Fat

32g

Carbs

10g

Frequently Asked Questions

How long does it take to make Margaret Wood's Mushroom Casserole?

Margaret Wood's Mushroom Casserole takes about 80 minutes from start to finish — roughly 20 minutes to prepare and 60 minutes to cook.

How many calories are in Margaret Wood's Mushroom Casserole?

Margaret Wood's Mushroom Casserole has approximately 356 calories per serving, with about 26 g protein, 10 g carbohydrates and 31 g fat.

What ingredients do I need for Margaret Wood's Mushroom Casserole?

The key ingredients for Margaret Wood's Mushroom Casserole are Onion, Margarine, Eggs, Milk, Sliced Mushrooms, Cracker Crumb. See the full list with measurements above.

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