Prep: 15 min, Cook: 50 min.

Preheat oven to 350°F. Cook tortellini in a large flameproof casserole of boiling salted water 5 minutes, or until al dente. Drain through a colander. Rinse under cold running water and set aside. Saut, sausage in same pan over medium high heat 5-7 minutes, stirring occasionally to break up meat until browned. Discard drippings. Transfer sausage to a bowl and set aside. Return casserole to heat. Stir in vinegar, scraping up browned pieces from bottom of pan. Saut, next 4 ingredients 6-7 minutes, stirring frequently, until onions are softened. Remove from heat. Stir in tomatoes, marinara sauce, sausage and tortellini. Combine remaining ingredients in a bowl and toss lightly. Stir half the cheese mixture into pasta. Sprinkle remaining cheese mixture over top. Bake 30-35 minutes, or until heated through.