Heat 1.5 Tbs oil in large deep skillet over medium heat. Add onion and garlic. Saute until onion softens, about 5 minutes. Increase heat to medium high. Add kale and thyme. Toss unil kale wilts, about 5 minutes. Add kale mixture, 1/2 tsp salt, 1/2 tsp pepper and nutmeg to potatoes; blend. Cool potato mixture.