1 (16 oz.) can green beans, drained
1/2 c. sliced mushrooms
1/3 c. blue cheese dressing
Thinly sliced onions

Preheat oven to 350 degrees. In 1 quart casserole, combine all ingredients except onions. Bake, covered for 10 minutes. Top with onions; bake, uncovered, an additional 5 minutes or until onions are heated. Serves 4. Makes a great vegetable side dish.