Heat an oven safe skillet over medium-high heat. Crumble in sausage and cook through, until no longer pink. Drain off some of the fat, if necessary.

Stir in spaghetti sauce, water, Italian seasoning water, and tortellini.

Bring mixture to a boil, turn heat down to low, cover and simmer for about 8 minutes or until tortellini is tender. You could also simmer with the lid off, but you'll want to keep stirring it with this method.

Remove from heat. Sprinkle Mozzarella and Parmesan evenly over tortellini. Cover for about 5 minutes until cheeses are melted. Alternatively, you could place pan under the broiler in your oven on low for 2-3 minutes until cheese is melted and bubbly (preferred method).

Garnish with fresh parsley or basil, if desired.