Spoon desired amount into a dish. Store remainder in the refrigerator in a suitable container for up to 24 hours. Always discard uneaten serving.

His mother must have seen him drive up. She came out on the porch holding a plastic spoon and smelling of cake.

Another option: Keep a box of high-fiber, low-GL breakfast cereal (along with plastic spoons and bowls) at your desk, and bring the milk (in a Thermos), fruit, and nuts with you.