1 box broccoli
1 can green beans
1 sm. onion
1 tsp. salt
1 tbsp. butter
1 c. grated sharp cheese
1 c. evaporated milk
1 can mushrooms

Boil broccoli for 5 minutes. Alternate layers of vegetables. Dot with butter. Pour milk over casserole. Sprinkle cheese on top. Bake until bubbly at 350 degrees. Add crumbs right before turning off oven.