I hand feed my gal. I feed strawberries kiwis carrots apples and cucumber, but I also know that anything you can gutload with you can feed directly to your cham if they'll eat it. I use the cut it in to thin strips and wiggle it around in your fingers to make it look like a bug method.
But on another note I have a little guy that wont eat anything that doesn't move like a bug and wont hand feed.
You can use dandelion greens, kale, collards, endive, escarole, mustard greens, carrots, squash, zucchini, sweet potatoes, sweet red pepper and a small amount of fruit (apple, pear, melon, berries, etc.). They should all be cut into appropriate sizes that they can ingest easily.