Preheat oven to 450 degrees F. Boil noodles per package instructions. Chop vegetables. Mix cooked noodles, vegetables, soup, salt & pepper and tuna in a bowl.
Pour half of the mixture into a casserole dish. Layer 4 slices of cheese on top and then pour the rest of the mixture into the casserole dish. Layer the remaining cheese and then the crushed potato chips on top.
Bake 20 minutes. Let stand 5-10 minutes before serving.