Broccoli & Garlic Cheese Casserole

Broccoli & Garlic Cheese Casserole 2 packages frozen chopped broccoli, thawed (16oz each) 1/2 cup butter, melted 4 green onions, including tops, chopped 1/2 cup chopped celery 3 tablespoons flour 1 roll garlic cheese 1 can cream of mushroom soup 1 can or jar sliced mushrooms, (4 ounce) Cook broccoli; drain. Saute onions and celery in melted butter until tender. Add flour and cook for about 2 minutes, stirring constantly. Add cheese and stir until melted; blend in soup. Add broccoli and mushrooms. Turn into a lightly greased casserole dish. Bake, covered, at 350 degrees for about 30 minutes.