HAMBURGER RICE CASSEROLE

1 pound lean hamburger meat (I used ground turkey)
1 cup cooked rice
1/4 cup chopped onion
1/4 cup finely chopped celery
1/4 cup chopped bell pepper
1 can of  cream of mushroom or cream of celery

Brown hamburger meat and drain. Sauté onions, bell pepper, and celery; drain. Mix all ingredients together and pour into casserole dish. Bake for 30 minutes or until bubbly at 350 degrees.