PREHEAT oven to 325°F. Toss cheese with 1 tsp. of the dressing in small bowl. Place in small resealable plastic bag. Add peanuts; seal bag. Shake to evenly coat cheese with the peanuts; place on ungreased baking sheet. Reserve any remaining peanuts in bag.
BAKE 7 to 8 min. or until cheese is slightly softened.
MEANWHILE, toss greens with remaining dressing and reserved peanuts. Divide evenly between two salad plates. Arrange pear slices around salads; top each salad with warm cheese wedge.