As mall owners and restaurant operators search for ways to keep diners spending longer on-site, food halls have increasingly become testing grounds for chef-led, nostalgia-focused concepts. In Los Angeles, that trend took a clear form on September 2, 2024, when B.J. Novak’s Chain began a six-month residency at Topanga Social inside Westfield Topanga, bringing upscale riffs on fast-food dishes many customers already knew.
Chain brings four chefs and a six-month residency to Westfield Topanga
Chain, the food concept created by actor B.J. Novak and partners including chef Tim Hollingsworth, opened its Topanga Social residency on September 2, 2024, according to Nation’s Restaurant News. The project translated Chain’s earlier pop-up model into a food-hall format, with four chefs each building a dish around a recognizable fast-food reference point. The verified scale of the launch was four chef-created menu items plus two related concepts, Chain Snacks and ByChain, planned as part of the residency.
Roy Choi contributed a Charred Chicken Teriyaki Bowl, a mall-food reference that connected directly to the setting. Calvin Eng developed a Crispy Cantonese Fishwich inspired by McDonald’s Filet-O-Fish, while Mason Hereford created a Spicy Chicken Chainwich based on the Wendy’s spicy chicken sandwich. Mei Lin added a Mapo Wagyu Cruncho Perfecto, a Sichuan-influenced take on the Crunchwrap format, according to the publication’s report and chefs’ statements provided to the outlet.
The concept’s stated goal was not exact duplication. Mei Lin said the idea was to capture the feeling of eating a familiar chain item and take it in a different direction, according to Nation’s Restaurant News. That positioning placed Chain between chef collaboration, branded nostalgia, and mall dining, rather than in direct competition with the original national chains that inspired the menu.
The Los Angeles impact centered on Topanga Social’s role as a regional food destination
For Los Angeles diners, the significance of the residency was tied as much to the venue as to the menu. Topanga Social is the chef-driven food hall at Westfield Topanga in the San Fernando Valley, and Westfield has described it as part of the mall’s broader dining and entertainment district. Business announcements tied to the project said the food hall spans more than 20 eateries, making it one of the larger mall-based culinary venues in the region.
The Chain residency gave Topanga Social a limited-run attraction built around well-known chefs with connections to Los Angeles and beyond. Choi’s participation added a hometown link, and his statement to Nation’s Restaurant News described mall food as part of his own upbringing. That local framing mattered because the residency was not announced as a standalone restaurant elsewhere in the city; it was specifically positioned inside a mall environment that depends on repeat regional traffic.
What remains less clear is how much customer volume the residency generated over its full run. Neither Westfield nor the available reports released public attendance figures, sales data, or a full performance breakdown for the six-month program. Publicly available reporting also did not provide a complete month-by-month list of all ByChain brand collaborations that were expected to rotate into the space later.
The broader context is the intersection of nostalgia, food halls, and retail reinvention
The Chain project arrived during a period when restaurant operators were using limited-time collaborations and familiar menu cues to lower the barrier to trial. Nation’s Restaurant News reported that Chain had evolved from invitation-only dinners into a broader event and food-festival concept before moving into a food-hall residency. That progression reflected a wider industry strategy: use recognizable flavors and formats to attract customers, while giving chefs room to add technique, regional influence, or premium ingredients.
The mall setting added another layer of context. Westfield and affiliated property materials have presented Topanga Social as a major component of the center’s repositioning toward dining, entertainment, and longer visits. In practical terms, that means food is no longer treated as support for retail alone; it is part of the reason customers make the trip. A concept like Chain fit that strategy because it offered a time-limited reason to visit beyond standard food-court options.
For customers, the result was a menu built on familiar references but sold as a special-event experience inside a large Los Angeles shopping center. The residency was announced as lasting six months beginning September 2, 2024, according to Nation’s Restaurant News, giving diners a defined window to try the concept while Topanga Social continued to market itself as a destination for chef-driven dining.