PREHEAT oven to 350°F. Toss crackers with 2 Tbsp. of the dressing; spread onto ungreased baking sheet. Bake 5 min. or until golden brown. Cool.
COMBINE lettuces in large bowl. Add cheese and pepper; toss lightly. Drizzle with remaining dressing; toss to coat.
TOP with crackers. Serve immediately.
