Casserole - Broccoli Rice

2 boxes frozen broccoli
1 cup uncooked rice
1 stick butter
1 medium onion
 1 (8 oz) jar Cheese Whiz
1 can Cream of Mushroom Soup
1 can Cream of Chicken Soup

Saute onions in butter.  While onions saute, cook broccoli according to package directions.  Combine the rice with 2 cups of water and cook over medium high heat for 20 minutes or until tender.

Combine soups, cheese and butter in 2-quart casserole.  Then add the rice and broccoli.  Mix well and cover with foil.  Bake at 350 degrees for 30 minutes.  Remove foil for last 15 minutes.