"Glory Road" by Robert A. Heinlein. Early Vietnam era vet and former college football hero goes on an interdimensional quest with the Empress of the Universes and her grandson. Wants to carry a Thompson or M-14 but ends up killing dragons, wild hogs, anthropomorphic bovine satyrs, giant rats, a giant ogre, and the Eater of Souls with sword and longbow.
Great stuff!
Art, the warm-blooded dinosaur hypothesis generally compares dinosaurs to birds, so you may be right about them tasting like chicken. I was kind of hoping turkey myself. Another hypothesis holds that the large meateaters were opportunistic carnivores, living mostly on carrion, so maybe old T-rex tasted like one of those old south Brewster County buzzards would- yechh!