The chain of 24-hour diners is opening its first Inland Valley location on Indian Hill Boulevard in Claremont immediately south of the 10 Freeway. The closest of 17 Norm’s are in West Covina and Riverside. Here’s the Wikipedia page and here’s the official website.
Chili’s used to be on this site but was demolished circa 2005 for a Claremont Toyota expansion that didn’t take. I’d say Norm’s is a step up from Chili’s, and not only from a novelty standpoint, but your mileage may vary.