Review for Rainbow Hotel & Casino Review For Rainbow Hotel & Casino Google User Feb 6 '17 at 16:33 DO NOT EAT AT THE Buffet. I was excited to go and try the Mongolian Grill, but I found that the meat was not frozen, and who knows how long it had been sitting out. All of the food that was present to consume at the buffet, wasn't fresh, had been sitting out way too long, and didn't taste very good. The casino was great, however we did run into some smart ass pit workers on the craps table that consistently were poking fun at their craps players in Spanish. View full site to comment or like