01 -
Heat a large skillet over medium-high heat. Add Italian sausage and chopped onion, cooking until the meat is browned. Drain the grease.
02 -
Reduce heat to medium-low. Add minced garlic, Alfredo sauce, marinara sauce, Italian seasoning, and red pepper flakes. Stir everything well to combine.
03 -
Stir in the frozen cheese tortellini, ensuring it is well coated with the sauce. Cover with a lid and cook for a few minutes or until the tortellini is tender.
04 -
Top with shredded mozzarella cheese and place in a 400°F oven for a few minutes to melt the cheese, or let it sit covered on the stove until the cheese is melted.
05 -
Garnish with dried parsley flakes and serve warm.