Chef is about a chef played by Jon Favreu. You can tell he’s also the writer/director because his character has slept with both Scarlett Johansson and Sofia Vergara, which anyone else would say is ridiculous. It’s sort of an Iron Man 2 reunion thing, with Favreau, Johansson, and RDJ (though all 3 don’t end up on screen together), joined by John Leguizamo, Oliver Platt, Dustin Hoffman, and Amy Sedaris.
It makes for an ok movie. It could entirely be taken as a “fuck Marvel, I want to do indie movies” thing, since Favreau’s character is stifled creatively by working for a boss who doesn’t let him cook the food he wants, then opens a food truck cooking what he wants and finds happiness. But I guess his next project is a big budget Jungle Book adaptation, so maybe not.