Microwave Broccoli-Rice Casserole - cooking recipe

Ingredients

2 c. cooked rice
1 (10 oz.) pkg. frozen broccoli, chopped and cooked
1/2 c. chopped onion
1 Tbsp. margarine
1 (10 3/4 oz.) can cream of mushroom soup
8 slices American cheese

Preparation

Prepare rice and broccoli; set aside.
Put onion and butter into 1 1/2-quart glass casserole dish.
Cook, uncovered, in microwave for 4 minutes on High temperature; stir once.