Tortellini Broccoli Salad

Bring a large pot of water to a boil and cook tortellini according to the package directions, being careful not to overcook. Rinse with cool water and drain well. Set aside. Meanwhile preheat oven to 375 degrees. Place bacon on the foil lined, rimmed baking sheet. Bake for 15-18 minutes or till browned and crisp. Transfer cooked bacon to paper towels to drain. Crumble and set aside. In a large serving bowl, Combine the broccoli, cooked and cooled tortellini, onion, and dried cranberries. in a small bowl, stir together the mayo, sour cream, balsamic vinegar, and sugar. Pour over the broccoli mixture, and toss until well mixed. Refrigerate for a least 2 hours or up to six. When ready to serve, stir in the bacon and chopped walnuts.