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 Egg-Asparagus-Mushroom Casserole?

You need 8 ingredients. The key ingredients include: 2 Tbsp. butter, 3 Tbsp. flour, 1/2 tsp. prepared brown mustard, 1 can mushroom soup, and more.

Is Egg-Asparagus-Mushroom Casserole suitable as vegetarian?

Yes, Egg-Asparagus-Mushroom Casserole falls under the Vegetarian category and is a great choice for this type of meal.

How do I store leftover Egg-Asparagus-Mushroom Casserole?

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

Egg-Asparagus-Mushroom Casserole Recipe

Name: Egg-Asparagus-Mushroom Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 Tbsp. butter; 3 Tbsp. flour; 1/2 tsp. prepared brown mustard; 1 can mushroom soup; 1 large can green asparagus tips; 4 hard-cooked eggs, sliced; 1/2 c. rice flakes, crushed before measuring; 1/4 c. grated American cheese

Try this homemade Egg-Asparagus-Mushroom Casserole recipe the whole family will love. Made with butter, flour, brown mustard and mushroom soup. Easy ste…

This Egg-Asparagus-Mushroom Casserole relies on simple, everyday ingredients such as butter, flour, prepared brown mustard and mushroom soup. It comes together quickly and makes 4 servings, at about 430 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Vegetarian

Servings: persons

2 Tbsp. butter
3 Tbsp. flour
1/2 tsp. prepared brown mustard
1 can mushroom soup
1 large can green asparagus tips
4 hard-cooked eggs, sliced
1/2 c. rice flakes, crushed before measuring
1/4 c. grated American cheese

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Quick Info

Servings
4 servings
Calories
430 kcal
Category
Vegetarian

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