My beloved Czech cookbook given to me by my Mother many years ago had this wonderful recipe. I added leftover prime rib pieces to mine and loved it. It’s easy, it’s hearty, and it’s healthy.
MUSHROOM BARLEY SOUP
2 tablespoons butter
1/2 cup chopped onion
1/2 cup chopped celery
1/2 cup chopped carrots
1/2 lb. sliced mushrooms
4 cups chicken, beef or vegetable broth
1 tablespoon flour
1/2 cup barley
Optional: chopped cooked beef or chicken
Melt butter in large saucepan. Add onion, celery, carrots, and mushrooms and saute for about 10 minutes. Add flour and stir; add broth, barley, and protein (optional). Cook for about 40 minutes or until cooked through.