
Bareburger is a farm-to-table burger chain with three NYC locations (Astoria, Murray Hill, Upper East Side).
Beyond the beef, the menu leans into organic and free-range options across the board, including a full vegetarian/vegan lineup.
Classic Organic Grass-Fed Burger
Organic grass-fed beef burgers, whole menu
Their own site describes "organic grass-fed beef burgers" and "primo organic grass-fed beef burgers" in its sustainability section, alongside a separate 100% antibiotic-free Wagyu option. · confirmed via bareburger.com

Butcher Bar is a smokehouse and butcher counter in Long Island City built around its own meat program.
The whole protein program, not just the beef, runs on the same locally sourced, grass-fed standard. It's a real barbecue joint, not a quick counter.
Brisket · Smoked Beef Ribs
100% grass-fed and grass-fed/organic grain-finished beef, whole menu
Their own site states: "We serve locally sourced, 100% grass-fed and grass-fed/organic grain-finished beef, organic chicken, heritage-breed pork..." The claim covers the whole menu, not one dish. · confirmed via butcherbar.com

Diner is a Williamsburg institution since 1999, set in a 1920s dining car, with an in-house butcher and a menu that changes daily.
The kitchen grinds its own burgers from the restaurant's in-house butchery. No reservations, and the menu is recited tableside rather than printed.
Grass-Fed Burger · Grass-Fed Steak
Grass-fed steaks and a grass-fed burger, confirmed via reputable press rather than a literal on-page quote
Multiple independent, reputable sources (NYC Tourism's own official site, Time Out) consistently describe "grass-fed steaks" and a "grass-fed burger" on Diner's menu. Diner's own menu is posted as photographed images rather than text, so this rests on that corroboration rather than a literal on-page quote. · confirmed via nyctourism.com: Diner
Frequently asked questions
Are there grass-fed beef restaurants in New York City?
Yes. Butcher Bar (Long Island City, Queens) states on its own site that its whole protein program, including beef, is 100% grass-fed and grass-fed/organic grain-finished. Bareburger, with locations in Astoria, Murray Hill, and the Upper East Side, describes its burgers as organic grass-fed on its own site. Diner (Williamsburg, Brooklyn), a 25-year neighborhood institution, is consistently described by independent, reputable sources as serving grass-fed steaks and a grass-fed burger, though its own menu is posted as photographed images rather than text we could quote directly. See each listing for exactly what's confirmed and by whom.
Cooking grass-fed beef at home instead?
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