This is the only thing I'll eat that contains tuna...I'm NOT a fan of tuna fish...too many long hours on warm buses with other people's smelly lunches. This recipe comes from my mom.
Boil noodles. Drain. In a 9x13 baking dish, combine noodles, tuna, 1 can of cream of mushroom soup, and grated cheese. Bake at 375 for 35 minutes. I remember sometimes my mom would add crushed potato chips to the top of this casserole.