Broccoli Casserole

BROCCOLI CASSEROLE
2 pkg. frozen broccoli, prepared
1 sm. jar Cheez-Whiz
1 can cream of mushroom soup
1 can cream of chicken soup
2 c. Minute Rice
1/2 c. chopped onion
1 stick margarine

Cook broccoli and drain. Add remaining ingredients while broccoli is still hot and mix well. Pour in a 9 x 13-inch dish and bake at 350 degrees for 40 minutes. Do not add salt. Cheez Whiz is already salty.