Portillo's, the Chicago-born fast-casual chain known for Italian beef, hot dogs, and a rotating roster of seafood items including its fried shrimp and fish sandwiches, has announced plans to open its first inline restaurant on Michigan Avenue in downtown Chicago. The move represents a strategic departure from the brand's traditional freestanding, drive-through-oriented footprint and marks a direct play for the dense foot-traffic corridor that anchors the city's retail and tourism core.
The company has not disclosed square footage, projected seat count, or capital expenditure figures for the Michigan Avenue unit at this time. Portillo's currently operates more than 80 locations across nine states, with the bulk of its units concentrated in the Midwest. The downtown Chicago opening would be the brand's first inline format in its home market, a format that carries meaningfully different labor, real-estate, and supply-chain cost structures than its suburban drive-through predecessors.
For seafood-adjacent operators and suppliers tracking fast-casual channel demand, the Portillo's announcement is worth noting. The chain's value-added seafood offerings — including battered fish and IQF shrimp preparations — move in volume through broadline distribution, and a high-throughput Michigan Avenue unit could represent a measurable uptick in weekly seafood pull. Urban inline formats typically run higher ticket velocity than suburban drive-throughs during peak lunch and dinner dayparts, particularly in tourist-dense corridors.
The Michigan Avenue announcement also arrives as fast-casual operators broadly reassess their urban exposure following post-pandemic foot-traffic normalization in major metros. Chicago's downtown core has seen gradual office-occupancy recovery, and brands with strong local identity — Portillo's chief among them — are positioned to capitalize on both commuter and visitor demand. The inline format also removes the land and zoning constraints that have historically limited the brand's ability to penetrate dense urban zip codes.
Portillo's has not confirmed an opening timeline or named a general contractor. Further details on the Michigan Avenue unit, including menu scope and whether the location will carry the full seafood lineup, are expected as the project advances toward permitting. Industry observers will be watching whether the inline format prompts additional urban-market entries from the chain, which has signaled aggressive unit growth as a core pillar of its long-term strategy.
Written by Michael Politz, Author of Guide to Restaurant Success: The Proven Process for Starting Any Restaurant Business From Scratch to Success (ISBN: 978-1-119-66896-1), Founder of Food & Beverage Magazine, the leading online magazine and resource in the industry. Designer of the Bluetooth logo and recognized in Entrepreneur Magazine's "Top 40 Under 40" for founding American Wholesale Floral, Politz is also the Co-founder of the Proof Awards and the CPG Awards and a partner in numerous consumer brands across the food and beverage sector.