HEAT large nonstick skillet on medium-high heat. Add sausages; cook 12 min. or until cooked through (170ºF), turning after 6 min. Remove sausages from skillet; cover to keep warm. Drain skillet.

ADD peppers, onions and dressing to skillet; cook and stir 5 min. or until vegetables are crisp-tender. Stir in tomatoes. Bring to boil; cook 5 min., stirring occasionally.

CUT sausages lengthwise in half, being careful to not cut all of the way through to bottom of each sausage. Open sausages; place, cut-sides down, on bottom halves of rolls. Top evenly with pepper mixture and cheese. Cover with top halves of rolls.