Hamburger Tortilla Casserole

2 pounds ground beef

1 onion, chopped

1 can ranch style beans

1 can rotel

1 can cream of chicken soup

1/4 pound Velveeta

1 package flour tortillas (just enough to cover top of casserole, about 5)

Brown ground beef with chopped onion; drain.  Add beans, soup, and rotel.  Layer in casserole dish:  meat mixture, velveeta, and flour tortillas.  Bake about 35 minutes at 350 degrees.