This mixture makes an excellent topping for steak or chicken. Keep the recipe handy for your summer BBQ.
1 (10 oz.) package sliced mushrooms
1 onion, coarsely chopped
1 T minced garlic
1/2 c. balsamic vinegar
Place all ingredients in a frying pan, and simmer on low heat, covered, until onions and mushrooms are soft. Remove cover, and continue cooking until vinegar is reduced.