Rice-A-Roni, the San Francisco Treat. Rice-A-Roni, the flavor can’t be beat. Would you believe Rice-A-Roni really did start in the Mission District of San Francisco? It began as a pasta factory in 1912. Rice was added to their Macaroni in 1934, but still no Rice-A-Roni as we know it today. It wasn’t until 1958 that the founder’s son, Vince De Domenico, thought to add dry chicken soup mix to the boxed rice and macaroni that Rice-A-Roni was born.