Broccoli Casserole - cooking recipe

Ingredients

1 c. cooked rice
1 stick margarine
1 chopped onion
6 oz. Velveeta cheese
1 c. mushrooms
1 box chopped frozen broccoli

Preparation

Saute onion in margarine.
Add rest of ingredients.
Bake at 375\u00b0 for 30 minutes.