John digs into some super-stacked burgers and gargantuan milkshakes in Hamilton, Ont.; John heads to Louisville, Kentucky for some shrimp and grits; in Vancouver, John gets a lesson in pan-Asian soups.

In New Orleans, John devours a fried bologna sandwich and a collard green melt; John checks out some farm-to-table seafood and hand-rolled pasta in Vancouver; John visits a meat-centric restaurant in Hamilton, Ont.