Question: Pat LaFrieda Meat Purveyors is a third generation meat wholesaler, responsible for the famous “Black Label Burger” at Minetta Tavern, as well as other signature custom blends at  restaurants such as Shake Shack, an American fast casual restaurant chain based where?

Context paragraphs:
The Habit Burger Grill: The Habit Burger Grill is an American fast casual restaurant chain focused on hamburgers, salads, sandwiches, shakes and french fries.  Its headquarters is in Irvine, California.  From 1969 to 2007, the chain slowly expanded around the Los Angeles metropolitan area to 23 restaurants.

Shake Shack: Shake Shack () is an American fast casual restaurant chain based in New York City.  It started out as a food cart inside Madison Square Park in 2004, and its popularity steadily grew.  It eventually moved to a stand within the park, expanding its menu from New York-style hotdogs to one with hamburgers, hotdogs, fries and its namesake milkshakes.  The company claims to use all-natural 100% Angus beef only and says that its meat has no hormones nor antibiotics.

Fazoli's: Fazoli's is an Italian-American fast casual restaurant chain based out of Lexington, Kentucky.  It was founded in 1988 and is now owned by Seed Restaurant Group, Inc.  Today, there are more than 200 Fazoli's located nationwide with plans to expand overseas.  The restaurant chain specializes in Italian cuisine and dishes.  Carl Howard is the company's president and CEO.

Pat LaFrieda Meat Purveyors: Pat LaFrieda Meat Purveyors is a third generation meat wholesaler based in North Bergen, New Jersey that specializes in dry-aged steaks and artisanal burger patties but also supplies selected cuts of beef, pork, poultry, veal, lamb and buffalo.  The company is responsible for the famous “Black Label Burger” at Minetta Tavern, as well as other signature custom blends at New York City restaurants such as Shake Shack, Spotted Pig, Union Square Café, Blue Smoke and Market Table.

BurgerFi: Burgerfi is an American fast casual restaurant chain focused on hamburgers, french fries, hot dogs, and custard.  The first location was opened in February 2011 in Lauderdale-by-the-Sea, Florida, inside a former Burger King.

Wayback Burgers: Wayback Burgers, previously known as Jake's Wayback Burgers, is an American fast casual restaurant chain based in Cheshire, Connecticut.  Wayback serves typical hamburger restaurant foods such as hamburgers, hot dogs, chicken sandwiches, milkshakes and salads along with a variety of regional selections.  Originally created in Newark, Delaware, Wayback began expansion in the late 2000s; in 2013, it was announced that the chain was expanding internationally to an additional 28 countries, with locations in the Middle East and North Africa slated to open in early 2014.  The second international agreement signed is with Argentina.

Fatburger: Fatburger Inc. is an American fast casual restaurant chain.  Its tagline is "The Last Great Hamburger Stand".  While it is a fast food restaurant, the food is cooked and made to order.  Some Fatburger restaurants have a liquor license, as well as Fat Bars.  Its franchise headquarters are in Beverly Hills, California.  In addition to the United States, the chain operates in 19 other countries.

Elevation Burger: Elevation Burger is an American fast casual restaurant chain that originated in Falls Church, Virginia, within the Washington Metropolitan Area.  They have over 50 locations operating in the United States, México, Bahrain, Kuwait, Qatar, Saudi Arabia and the United Arab Emirates.

Burger Lounge: Burger Lounge is an American fast casual restaurant chain that specializes in hamburgers made from American grass-fed beef, salads, shakes, French fries and onion rings.  Burger Lounge is headquartered in San Diego, California.  In 2007, J. Dean Loring and Michael Gilligan founded the company in La Jolla, California.  J. Dean Loring is the President and CEO of Burger Lounge.

The Meat Purveyors: The Meat Purveyors are an Alt country bluegrass band from Austin, Texas.  The Meat Purveyors consist of Bill Anderson (an Austin Music Hall of Fame inductee) on guitar, Jo Stanli Walston on vocals, Cherilyn diMond on upright bass, and Pete Stiles on mandolin.  Founded in 1996, the band released six records on the Bloodshot label between 1998 and 2008.

Supporting paragraphs: Pat LaFrieda Meat Purveyors Shake Shack
Answer: in New York City