Beverly Lewis 
Big Bad Beans (Cul-de-Sac Kids Book #22) 

Jason Birchall is saving all his money for a super mountain bike. He’s been working hard and counting every penny. He’s even storing his money in a secret place that no one can find.But Jason’s mom is on a health kick, and she’s making him eat vegetables…and beans. Jason comes up with a way to hide some of the icky food, but it turns out to be a bad mistake.Will Jason and the Cul-de-sac Kids still be able to come up with a way to get that bike?