My absolute favorite is lasagna soup (from GrammarGirl)
1 lb bulk Italian sausage 2 cups onions, chopped 1 cup carrot, diced 2 cups mushrooms, sliced 2 tablespoons garlic, minced 4 cups chicken broth 1 (14 1/2 ounce) can Italian-style stewed tomatoes, chopped 1 (10 3/4 ounce) can tomato sauce 1 cup mafalda pasta or 1 cup campenelle pasta 2 cups fresh spinach, chopped 1 cup provolone cheese or 1 cup fresh mozzarella cheese, diced 1/4 cup parmesan cheese, shredded (for garnish) 4 teaspoons thinly sliced fresh basil (for garnish) Directions:
1 Brown sausage in a large saucepan over medium-high heat. Add onions and carrots; saute 3 minutes. Stir in mushrooms and garlic, and saute another 3 minutes. 2 Add broth, stewed tomatoes, and tomato sauce, and bring to a boil. Drop in pasta and simmer until cooked, about 10 minutes, or according to package directions. Stir in spinach and cook until wilted. 3 Place 1/4 cup cheese into serving bowls and pour soup on top. Garnish with Parmesan and basil.