Broccoli Au Gratin

Layer in a casserole dish:
1 ½ pounds cooked broccoli
¼ lb. sliced mushrooms
2 cans cream of celery soup
½ C. sharp grated cheese
Salt, pepper, onion salt, paprika
Top with:
½ C. buttered bread crumbs
Bake at 350 degrees for 20 minutes.