Remove oatmeal cups from freezer; let stand at room temperature 10 min. Use offset spatula to remove cups from pan. Place in freezer-weight resealable plastic bags; return to freezer. Freeze up to 2 months. Transfer 2 oatmeal cups to microwaveable bowl just before serving. Microwave on HIGH 1 min. 40 sec. or until heated through, stirring after 1 min.