Portillo’s Greenfield is a fast food restaurant in Greenfield, holding a 4.2-star rating across 5217 Google reviews. Chicago-born chain for hot dogs, Italian beef sandwiches & more, plus beer & wine, in retro digs. The atmosphere is relaxed and unpretentious, the kind of place where you can settle in without feeling rushed. Outdoor seating is available for warmer months. The kitchen stays open late for a proper meal after a long night out. Families are well catered for with a dedicated kids menu available. Prices are in the $ range.