As part of the deal the food delivery firm will deliver a range of sandwiches to customers who order from the restaurant.
Customers can choose from a range menu items including the Impossible Burger, Fat Sal, and Fat Banh Mi-Ki.
Fat Sal is a blend of roast beef, mozzarella sticks, onion rings, fries and brown gravy. Fat Banh Mi-Ki is made using sweet and spicy ribeye steak, Vietnamese vegetables, onion rings, fresh jalapeno and more.
Fat Sal’s Deli co-owner and operator Sal Capek said: “We are thrilled to partner with Postmates and offer on-demand delivery to loyal and new customers.
“It’s incredible to continue to grow Fat Sal’s reach within our community and Postmates is the seamless partner to help us do that.”
Postmates senior vice president and merchant lead Dan Mosher said: “Fat Sal’s is the quintessential guilty pleasure in LA. We are proud to be the team entrusted to deliver this staple to Angelenos and it attests to Postmates’ leadership in the market.”
Customers can visit postmates.com or download Postmates app on their mobile devices to place orders.
Free delivery is available by subscribing to Postmates subscription service, Postmates Unlimited, for an annual fee of $7.99 per month.
Postmates currently offers on-demand delivery services across 3,500 cities in the US by serving food from more than 500,000 restaurants, grocery and convenience stores.
In June this year, US-based family dining concept Black Bear Diner partnered with Postmates to deliver food to its customers in select markets.