This is excellent and easy!

1 (13 ounce) can evaporated milk
1 can Mexi-corn, undrained
1 can cream of mushroom soup
1 (6 1/2 ounce) can tuna, well drained and flaked
1/2 cup water
4 ounces processed American cheese, cubed
1 tablespoon instant minced onion
Few grains of pepper
6 drops hot pepper sauce

Combine all ingredients in a large saucepan. Cover and cook over medium heat, stirring occasionally until cheese melts. DO NOT BOIL.

Serve hot.