The Microwave Maze by Danny Capel

When eight-year-old Owen's microwave starts growling, he discovers a hidden world called the Microwave Maze where every microwave on Earth is connected by magical portals. After a tiny blue monster named Zap accidentally loses Owen's bowl of macaroni and cheese, the missing dinner transforms into a gigantic Leftover Muncher that threatens to destroy the Maze and every microwave in the world. Joined by his fearless sister Ava, their hilarious dad, and a cast of unforgettable monsters, Owen must race through bizarre places filled with burnt popcorn storms, talking leftovers, submarine kitchens, and outrageous adventures. Along the way, they learn that even the biggest mistakes can be made right with courage, friendship, and a little imagination. Packed with laugh-out-loud humor, unforgettable characters, and nonstop adventure, The Microwave Maze is a wildly fun chapter book that will leave kids hungry for the next adventure.