Crumble the sausage and add it to a skillet on medium high heat. Cook through and drain any excess renderings. Add the black pepper, onion powder, granulated garlic, and oregano.
Reduce the medium heat and add the sauce and bring it to a simmer, then gently stir in the tortellini
Thoroughly stir in the Parmesan cheese and half of the mozzarella cheese.
Taste for salt and add as needed for taste.
Sprinkle the remaining mozzarella over the top of the tortellini with sausage.
Cover with foil and place the skillet in the oven. Bake for 25 minutes.
When time is up, remove the foil and bake for 5 more minutes, or until the cheese is bubbling and melted.
Notes
To remove casings:Score each sausage link length-wise, pulling the casings off and remove the meat.