Roast Beef Enchiladas
["2 cans roast beef", "1/2 chopped onion", "12 flour or corn tortillas", "1 can cream of mushroom soup", "1 can tomato soup", "1 can hot enchilada sauce", "1 large pkg. shredded Cheddar cheese"]
["Heat roast beef and chopped onion in a saucepan.", "Break up chunks of roast beef with a fork.", "Set aside to cool."]
["beef", "onion", "flour", "cream of mushroom soup", "tomato soup", "enchilada sauce", "Cheddar cheese"]