Tuna Casserole - cooking recipe

Ingredients

1 can tuna
1/2 onion
2 c. macaroni
sliced cheese

Preparation

Preheat oven to 350\u00b0.
Boil macaroni; add salt and 1 tablespoon oil.
Drain macaroni and stir in tuna and onion. Slice cheese and layer on top.
Bake 20 minutes.