01 -
1 pound rigatoni pasta.
02 -
1 tablespoon olive oil.
03 -
1 cup chopped yellow onion.
04 -
1 pound ground beef or Italian sausage.
05 -
4 cloves garlic, minced.
06 -
48 ounces marinara sauce.
07 -
1 teaspoon Italian seasoning.
08 -
1/4 teaspoon black pepper.
09 -
1/2 cup grated Parmesan cheese.
10 -
6 ounces shredded mozzarella.
11 -
1/2 teaspoon dried oregano.
12 -
Fresh parsley for serving.