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 Mushroom Appetizer?

You need 8 ingredients. The key ingredients include: 4 (1/2 lb) packageswhole white button mushrooms, ⅓ cup butter (Must be butter! Margarine is too oily), ½ tablespoon onion salt, 1 tablespoon dried parsley, and more.

Is Mushroom Appetizer suitable as snacks & appetizers?

Yes, Mushroom Appetizer falls under the Snacks & Appetizers category and is a great choice for this type of meal.

How do I store leftover Mushroom Appetizer?

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

Mushroom Appetizer Recipe

Name: Mushroom Appetizer
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 4 (1/2 lb) packageswhole white button mushrooms; ⅓ cup butter (Must be butter! Margarine is too oily); ½ tablespoon onion salt; 1 tablespoon dried parsley; 1 tablespoon Dijon mustard; 1 ½ tablespoons flour; 12 pint whipping cream; 1 loaf French bread

Try this homemade Mushroom Appetizer recipe the whole family will love. Made with packageswhole white button mushrooms, butter, onion salt and parsley. …

This Mushroom Appetizer relies on simple, everyday ingredients such as onion salt, dried parsley, dijon mustard and flour. It comes together quickly and makes 4 servings, at about 1218 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 Snacks & Appetizers

Servings: persons

4 (1/2 lb) packageswhole white button mushrooms
⅓ cup butter (Must be butter! Margarine is too oily)
½ tablespoon onion salt
1 tablespoon dried parsley
1 tablespoon Dijon mustard
1 ½ tablespoons flour
12 pint whipping cream
1 loaf French bread

Frequently Asked Questions

Quick Info

Servings
4 servings
Calories
1218 kcal
Category
Snacks & Appetizers

Eats Now Editorial Team

Recipe developed & tested in-house

Passionate cooks who develop and test new recipes every day – from quick weeknight dinners to special occasion feasts.

Reviewed by the Eats Now Kitchen Team

More about our team →

Mushroom Appetizer

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions