1 tablespoon olive oil
3 Italian sausage links, casing removed
1 (14.5-ounce) can diced tomatoes
1 (8-ounce) can tomato sauce
1 teaspoon dried oregano
1 teaspoon dried basil
1/2 teaspoon garlic powder
1/2 teaspoon crushed red pepper flakes, optional
8 ounces farfalle pasta
Kosher salt and freshly ground black pepper, to taste
1 cup shredded mozzarella cheese
1/4 cup freshly grated Parmesan
1 cup ricotta cheese
2 tablespoons chopped fresh parsley leaves