BRING carrots and milk to boil in nonstick skillet on high heat; cover. Simmer on medium-low heat 20 min. or until carrots are tender, stirring occasionally.

STIR in sugar and half the trail mix; cook, uncovered, on medium-high heat 15 min. or until thickened, stirring frequently. Cool 15 min.

STIR in Cool Whip and cardamom. Top with remaining trail mix.