Preheat the oven to 400 degrees F. Bring a pot of water to a boil and salt liberally.
Heat a medium saucepan over medium heat and add the oil. Once the oil is hot, add the garlic and onions and saute, stirring, for 3 minutes.
Meanwhile, drop the pasta in the boiling water and cook 3 to 4 minutes less than the package instructions.
Add the crushed tomatoes to the saucepan and bring to a simmer. When simmering, stir in any add-ins if desired.
Drain the pasta and mix it into the sauce. Season with salt and pepper to taste. Transfer to a baking dish and top with the provolone or mozzarella. Bake until the cheese is melted, 3 to 5 minutes.
Cook’s Note
For more ingredient substitution ideas, see the article below.