You can offer a veiled the same veggies (carrots, squash, zucchini, sweet potato, sweet red pepper, etc.) and greens (dandelions, kale, collards, endive, escarole, etc.) that can be used to gutload/feed crickets, superworms, etc. and a small amount of apple, pear, melon, berries or other fruits. Just make sure you cut the fruit and veggies into pieces they can eat easily.