I also have a male veiled chameleon. At certain times (maybe when he's getting a growth spurt & about to shed), he will eat A LOT of crickets. Sometimes 25 or 30 a day. I only give him maybe 4 or 5 mealworms every other day, and he loves silkworms, too.
Food Variety
I feed my 1-year-old male veiled chameleon, as a treat, mealworms & silkworms. He loves both! He does not care for any other kind of worm & he didn't like roaches, either. I would also like some other suggestions to vary his diet even more.
We have a veiled chameleon
We feed our veiled chameleon mostly crickets, but we give him 2 or 3 mealworms per day. If we don't have mealworms, he will get a silkworm, which he loves, but he doesn't like hornworms or butterworms. I see absolutely nothing wrong with giving him a treat daily...