What would you do?

My daughter decided she didn’t want dinner. She ate a little, but not a lot. Anyways I put her to sleep. (She is 1) we do not give her milk at night. So he went to bed and woke up around 3am hungry of course. Would you give her milk or snack? I wasn’t really sure what to do in this instance because she usually sleeps through the night 10pm- 9am