cricket crack is a dry gutload made by one of the members here. it is well recommended by many. You can make your own quite easily, to go along with fresh veggies and fruits.
The "wet" portion of the gutload, which should be your principle gutload, can frequently includes things like (switch it up with a different couple of items every other day or so):
dandelion leaves,
squash,
carrot, yam,
orange,
collard greens, alfalfa sprouts,
mustard greens, pomegranet, kale,
romaine,
hibiscus leaves,
apple, peas, blueberries, raspberries, sunflower sprouts, ... (avoid broccoli and spinach). Fruits and veggies such as these are important both for the nutrients they give (via the insect) to your chameleon, and also because well hydrated prey results in a better hydrated chameleon.
The dry portion (the lesser portion) of a gutload can include (blend/grind fine with a coffee grinder or food processor):
spirulina; dried seaweed/kelp/dulse;
bee pollen; dried alfalfa; organic raw
sunflower seeds; unhulled sesame seeds; hemp seed; dehydrated cranberry powder; beet powder; zucchini powder; kale powder; fig powder; very very very small amounts of powdered egg; ground almonds; ground brazil nuts; oak leaves; very very very small amounts of skim milk powder; small amounts of quality whole grain cereal (Im currently using Kashi); small amounts of oats; small amounts of cracked rye; wheat germ; quinoa; high quality monkey chow (read the ingredients); small amounts of avian pellets (read the ingredients, be cautious of too much Vitamin A). Avoid dog food, cat food, fish flake food and other major sources of animal protien and fat.