Rachael Ray Season 15 Episode 6 Guy Fieri's Super Melty Nachos + Cooking Tips For a Cause All Hour Long ( Air Date 2020-09-21 ) Genre Talk category. Overview "Rachael's joined by chef pals Guy Fieri, Curtis Stone, Andrew Zimmern and Erik Bruner-Yang for an hour full of cooking tips — and each tip equals a donation to restaurant relief organizations. Meanwhile, Rachael's making Big Barbecue Burgers for her hubby John.".