“If you frequently notice your [Little’s] sneaky eating habits, your approach to indulging and serving food may need to change.  Explain that there’s nothing wrong with having a snack or a treat—as long as she also eats the meals you regularly serve her.  You already decide when and what your [Little] eats. Some [Littles] sneak treats as a way to assert independence, so give them the freedom to choose how much she puts on her plate during mealtime.”
– Source: Randomly selected internet advice, um, lightly edited…