Deep dish pizza started as a snack for customers drinking alcohol inside a bar owned by Chicago businessman Ike Sewell.

Chicago deep-dish pizza, or just "deep dish," as it's commonly known, has befuddled pizza purists for decades. Is it a pizza? Is it, as comedian Jon Stewart once quipped, "an [expletive] casserole?" ...

She's a proud Buffalo native and current Chicago resident. Depending on who ask, Chicago-style pizza can mean one of two very different things: deep dish or tavern. Within those categories are ...