This is the episode where we first meet Kenny ("Soup's not a meal!") Bania with the Armani suit (and George goes for a walk with Kelly from Monk's when she "calls an audible" and George steps "right in it").
When George first returns to Monk's since his "day-date" with Kelly, George orders from her a bowl of chili. However (and I noticed this watching this episode on my DVD last night), what he gets doesn't look like chili. It looks like tomato soup, and when Bania squeezes in, with Jerry encouraging him to get a sandwich, Bania orders tuna on toast plus, glancing at George's supposed "chili," tomato soup. ("Soup & sandwich. That's a meal. This completes the transaction.")
The question: Does George getting the tomato soup and not the chili he ordered constitute a "film flub" i.e., a mistake in continuity, plot, something else? Maybe they ran out of chili for the final take.