Quick and cheesy sausage pasta

Prep Time: 10 min
Total Time: 25 min
Makes: 4 servings, 1-3/4 cups each

3 cups rotini pasta, uncooked
1 lb. Italian sausage links, cut into bite-size pieces
1 can (15 oz.) diced tomatoes, undrained
1 cup chopped onions (about 1 medium)
1/4 cup KRAFT Balsamic Vinaigrette Dressing
3/4 cup KRAFT Shredded Mozzarella Cheese, divided

COOK pasta as directed on package.
MEANWHILE, cook sausage in large nonstick skillet on medium-high heat 10 min. or until sausage is cooked through, stirring occasionally. Drain sausage; return to skillet. Add tomatoes with their liquid, the onions and dressing. Cook 5 min. or until onions are crisp-tender, stirring occasionally.
DRAIN pasta. Toss with the sausage mixture and 1/2 cup of the cheese. Sprinkle with the remaining 1/4 cup cheese.

Yet another recipe from kraftfoods.com. I even used the leftover sauce from the sausage hoagies on Monday.