Pig-Out Inn — Lois Ruby

In a new town, Dovi's family befriends a young boy who was abandoned at their restaurant

Dovi Chandler collects yearbooks. She has them from all over the country: mementos of every time her parents uprooted her to a new town, and a new crackpot business venture. They've managed apartment houses, tried to save failing bookstores, even sold Tupperware, but all it's ever gotten them is debt and a new yearbook for Dovi to add to the pile. It's not until her parents take over the Pig-Out Inn that Dovi feels ready to put down roots. It's just another truck-stop diner, but to Dovi it's home -- and she soon discovers that she and her family aren't the only ones living there.
 
Hiding out in 1 of the cabins is a 9-year-old boy named Tag. He was stashed there by his father, who is negotiating a painful divorce. Tag is an entrepreneurial genius, and his brilliant business schemes will offer Dovi and her mother a chance to make the Pig-Out Inn a success -- and learn the true meaning of family.