Hawaiian Yam Bake

Preheat oven to 250 deg. Combine all ingredients in a large roasting pan or casserole dish. Place in oven and bake, covered, for 2 hours. Stir occasionally and serve hot. Hint: For a sweeter taste, use apple juice to replace half of the vegetable stock. Per serving: 531 cal'; 22 g prot; 460 mg sod; 100 g carb; 7 g fat; 0 mg chol; 82 mg calcium