* Place 1 1/2 pounds cubed peeled sweet potatoes in a saucepan, and cover with water; bring to a boil. Reduce heat, and simmer 15 minutes or until tender. Drain; return potatoes to pan. Add 1 cup 1% low-fat milk, 1/2 cup shredded cheddar cheese, and 1/2 cup chopped green onions. Mash to desired consistency. Cook over medium heat 2 minutes or until thoroughly heated, stirring constantly.