bites (on), champs, chaws, chews, chomps (on), crunches (on), gnaws (on), nibbles

ruminatesmunches, noshes, snacksconsumes, eats, ingests, swallowsbolts, devours, gobbles (up or down), gorges, gulps, scarfs, scoffs, snacks, wolfsnips, pecks (at), picks (at)gums, mumbles

sinks one's teeth into