HEAT grill to medium-high heat. REMOVE stems from mushrooms; discard. Cut mushroom caps in half; thread onto 8 skewers alternately with remaining vegetables and pineapple. Brush with oil. MIX A.1. and preserves until blended. GRILL kabobs 10 min. or until peppers and onions are crisp-tender, turning frequently and brushing generously with A.1. mixture.