I have given my veileds greens (dandelions, kale, collards, endive, escarole, etc.) and veggies (carrots, sweet red peppers, sweet potato, squash, zucchini, etc.) and a little fruit (apple, pear, melon, berries, etc.) Slice the hard veggies (like carrots, squash and sweet potatoes) into thin short pieces so they can bite them. Things like apples can be cut into thin wedges and impaled on a branch. If you put the food in a dish in the cage where the crickets can get at it, they will remain somewhat gutloaded until they are eaten.