I've had him about 2 weeks and he's eaten (in that time):

3 big hornworms, 2 dusted dubia roaches, and 1 nightcrawler. His last owner told me she'd just dump in about 24 crickets two or three times per week and let him snack until they were gone but, honestly, I hate keeping crickets and prefer the dubias as we already have a colony for the tarantulas, and hornworms (and nightcrawlers).

I'm still trying to figure out how much and how often to feed him. Guides are kind of vague and most I've found are tailored to growing, baby frogs not adults.