This is Nuts!

Shelly the Peanut is allergic to humans and must sit alone at the Human Free Table at Nut School. Shelly wants to be eaten by a human, so she sets out on a quest to make her nutty dream come true. She finds a little girl named Celeste, who teaches Shelly that it's okay to be different and helps her accept that she should hold her shell up high and be proud of who she is.