The restaurant where Alonzo and Jake meet in the Training Day (2001) the Three Wise Men is a well-known steakhouse called Pacific Dining Car.

As one of Los Angeles' oldest restaurants, Pacific Dining Car was featured in several films and TV series. In the film Training Day (2001), Denzel Washington’s character recommended the restaurant’s "baseball steak," which led to the steak being renamed "Training Day" on its lunch menu

The Pacific Dining Car, an institutional landmark in Los Angeles, has been added to the city’s list of historic-cultural monuments, paving the way for a potential restoration of the famed steakhouse that for decades was the center of pricey lunch hours and after-hour politicking

Source: https://www.dailynews.com/2023/05/26/famed-pacific-dining-car-gets-historic-cultural-monument-status/amp/