Cheesy Mushroom Burgers

4 small plum tomatoes, chopped
1/4 cup chopped fresh basil
1/4 cup KRAFT Roasted Red Pepper Italian with Parmesan Dressing, divided
1 cup chopped mushrooms
1/2 cup KRAFT Shredded Low-Moisture Part-Skim Mozzarella Cheese
1 lb. ground beef
4 Italian-style hard rolls, split

PREHEAT grill to medium heat. Toss tomatoes with basil and 2 Tbsp.of the dressing; set aside. Heat remaining dressing in skillet on medium heat. Add mushrooms; cook and stir 5 min. or until tender and liquid has evaporated. Stir in 1/2 of the tomato mixture and cheese. Cool slightly.

MIX meat and mushroom mixture. Shape evenly into 4 patties. Grill patties 7 to 9 min. on each side or until cooked through (160°F).

COVER bottom halves of rolls with burgers. Top with remaining tomato mixture and top halves of rolls.

Makes: 4 servings
Source: Kraft