All the ingredients except the instant coffee and cocoa powder can be found in the cafeteria, so start collecting them! All you need to do is put the ingredients in a smoothie mixer and mix for a couple minutes. If you don’t have a frozen banana, you can add some ice cubes. If you want to be more elaborate, you can freeze a milk substitute, such as rice milk, in an ice cube tray and use that to chill the drink.
This smoothie has protein, fiber, fruit and milk fat, making it a healthy and filling morning smoothie. The texture of oatmeal in a smoothie can take a bit of getting used to, but I do not find it unpleasant at all, and it keeps you full for longer.