-Italian Sausage -Yellow Onion -Canned Crushed Tomatoes -Tomato Paste -Italian Seasoning
-Frozen Cheese Ravioli -Mozzarella, Shredded -Parsley
Add Italian sausage to a large skillet and cook over medium heat, stirring often, until the sausage is fully browned.
While the sausage is cooking, dice one yellow onion. Add it to the skillet with the sausage and continue to cook until the onion is soft and translucent (about five minutes).
Add crushed tomatoes, tomato paste, and Italian seasoning to the skillet. Stir to combine.
Bring the sauce up to a simmer, then lower the heat to medium-low. Place a lid on the skillet and allow the sauce to simmer, stirring occasionally, while you cook the ravioli.
Bring a large pot of water to a boil for the ravioli. Once boiling, add frozen cheese ravioli and boil for 3-4 minutes, or until cooked through (check the recommended cook time on the package). Drain the ravioli in a colander.
Preheat the oven to 350ºF. Add meat sauce to the bottom of a glass casserole dish and spread it around to cover.
Layer in half of the cooked ravioli, then top with shredded mozzarella.
Layer in sauce, the second half of the ravioli, sauce, then one final layer of shredded mozzarella cheese.
Cover the casserole with foil and bake in the preheated 350ºF oven for 20 minutes. Remove the foil, switch the oven from bake to broil, and return the casserole to the oven.
Watch the casserole closely and broil for just a few minutes more or until the cheese is slightly browned on top (this can happen quickly, so keep a close eye). Remove from the oven, top with parsley (if desired) and enjoy!