Female C. dickersonae are capable of producing multiple fertile clutches in captivity, as I once had one oviposit four within about a six month period; however, past experience has also taught me that allowing them to do so is probably not such a good idea. Gravid females of this species, like all collared lizards, are most definitely susceptible to egg binding and/or other life-threatening conditions if not in optimal health, and provided adequate shelter/substrate, when preparing to lay their eggs... As for your question concerning vegetable matter in their diet, my captive C. vestigium will readily eat dandelion greens, but the C. dickersonae seem to prefer strictly animal prey. Some of my juveniles will occasionally feed on shredded carrot or squash when offered prior to the insects...
Brock