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 Barley Thickened Mushroom Soup?

You need 11 ingredients. The key ingredients include: 3 c. mushroom slices (about 1/2 lb.), 1/2 c. chopped onion, 1/2 c. chopped green pepper, 1/3 c. butter or margarine, and more.

Is Barley Thickened Mushroom Soup suitable as soups & stews?

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

How do I store leftover Barley Thickened Mushroom Soup?

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

Barley Thickened Mushroom Soup Recipe

Name: Barley Thickened Mushroom Soup
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 3 c. mushroom slices (about 1/2 lb.); 1/2 c. chopped onion; 1/2 c. chopped green pepper; 1/3 c. butter or margarine; 1/3 c. flour; 3 c. water; 2 c. milk; 1/2 c. quick barley; 2 tsp. Worcestershire sauce; 1 1/2 tsp. salt; 1 tsp. dried parsley flakes

Warm up with this hearty Barley Thickened Mushroom Soup recipe. Made with mushroom, onion, green pepper and butter. Easy step-by-step instructions inclu…

This Barley Thickened Mushroom Soup relies on simple, everyday ingredients such as chopped onion, chopped green pepper, butter or margarine and flour. It comes together quickly and makes 4 servings, at about 353 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.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

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

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Barley Thickened Mushroom Soup

Tips for the best results

Variations & substitutions

My Personal Notes

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