What is this latest "animal" appearing more often on our "Additional Entrees" list? Soupia: cuttlefish, an "inking" cephalopod in the mollusk family and closely related to both the octopus and the squid, is an excellent source of a high quality, renewalble protein with a flavor similar to scallops and a texture like octopus without its suction cups--yep, that's what they're called.