Salt and pepper
2 tablespoons (1 ounce) olive oil
2 cloves garlic, sliced
1/2 medium onion, diced
1 pound dry pasta, such as rigatoni, penne, fusilli, etc.
32 ounces canned crushed tomatoes
Optional add-ins: canned tuna, canned salmon, frozen vegetables or canned beans
6 slices provolone or mozzarella
For more ingredient substitution ideas, see the article below.