Portillo’s Brings Breakfast to Five Chicago-Area Locations | Eater Chicago

"This Tinley Park suburban store is included among five locations piloting a limited breakfast menu from a national Chicago-born fast-food chain. The morning offering (6:30–10:30 a.m.) includes a Polish sausage with egg and cheese on the chain’s French loaf (plus a vegetarian option), a bacon-egg-and-cheese croissantwich, doughnuts from Stan’s Donuts, simple sides like fruit cups and hash brown bites, and beverages from Metropolis Coffee. The test leverages existing ingredients—eggs already used in other seasonal menu items—to simplify supply-chain logistics while the company gauges interest." - Serena Maria Daniels