Ingredients
1/4  ounce dried mushrooms (about 1/3 cup)
1/2  cup butter or margarine
8  ounces fresh mushrooms, sliced
1  cup chopped onion
3/4  cup sliced celery
3/4  cup sliced carrot
1  teaspoon bottled minced garlic
1/3  cup all-purpose flour
5-1/2  cups water
1-1/4  cups cubed cooked roast beef 
2/3  cup quick-cooking barley
4  teaspoons instant beef bouillon granules
2  tablespoons snipped fresh parsley

Directions
1. In a bowl, combine mushrooms and enough warm water to cover. Let stand for 30 minutes. Drain, reserving mushroom liquid. Coarsely chop the drained mushrooms. Set aside. 

2. In a large Dutch oven or kettle, melt the butter. Add fresh mushrooms, plus the onion, celery, carrot, garlic, and chopped dried mushrooms. Cook, uncovered, over medium heat for about 10 minutes or until vegetables are tender, but not brown, stirring occasionally. 

3. Stir in flour. Cook over medium heat, stirring frequently, for 5 minutes. Carefully add the water, beef, reserved mushroom liquid, barley, and granules of beef bouillon. Stir well to combine. 

4. Cook and stir the mixture until it’s bubbly. Continue to cook, uncovered, for 10 to 12 minutes more or until barley is tender, stirring frequently. 

5. Just before serving, stir in parsley. Ladle into warm bowls. Makes 8 servings. 

Source: Better Homes & Gardens