Though July 27, participating restaurants - more than 250 of them - will serve lunches for $15, $20 or $25, and dinners for $25, $35 or around $45, excluding tax and gratuity.
Restaurants pay a fee to enjoy the wealth of promotion in hopes of bringing in new customers.
"They see this as a huge opportunity to bring in new customers," said Stacey Sun, director of dineLA.
"I think it was like $750, but it's like such a nominal fee compared to the outreach that you get," said Joseph Antonishek of Industriel in downtown L.A., which will serve an appetizer, entrée and dessert for lunch for 20 bucks.
Sun would not to elaborate the return on investment, but calculations from the last dineLA estimate a roughly $8 million boost to L.A.'s economy, spanning Malibu to Long Beach and Santa Monica to Pasadena.
Metro partnered with dineLA to help diners save money, burn calories and boost L.A.'s economy all in one shot, along with exploring new areas and establishments.
"We're trying to encourage people to take Metro to dineLA because they have so many great restaurants all across L.A. County," said Anna Chen, a Metro spokeswoman.
Metro has six rail lines, including the new Expo line at Culver City, with many restaurants just a few blocks away from its stations. A roundtrip pass on Metro is just $3. That also means no wear-and-tear on your car, pricey gasoline or ridiculous valet or parking fees.
Find more details, participating restaurants and reserve a table at dinela.com.