I don't know the accuracy of this, but this page has a list of good fruits and veggies for beardies, and then some things to stay away from: http://hubpages.com/hub/Bearded_Dragon_Diet
Bearded dragon can eat vegs. Adult dragons eat about 50/50 diet of veggies/crickets.
Don't feed them iceberg lettuce. Romaine is okay.
Here is list greens:
There is a huge selection of 'leafy' greens which are high in calcium to feed your Dragon, some of which are... kale, argula, collard & mustard greens, parsley, dandelion greens and flowers, endives, radish, carrot and turnip tops, escarole and chicory endive. For more of a variety, mixed into the greens may be many other veggies such as squash, corn, peas, carrots (shredded), sweet potato, cucumber, zucchini, green peppers, chard... also chopped fruit such as cantaloupe, apple, blueberries, peaches, pears, grapes, plums, raspberries... all chopped finely to avoid choking. The main idea in their diet is variety.**Do not feed your dragons iceberg lettuce as is has very little nutritional value and may give the dragon the 'runs' - prompting dehydration.
Dragons will also munch on other greens. If you take your dragon outside or allow it to roam about the house - please be sure to check that the possible munchies are not poisonous.
Hey there. I have had my bearded dragon for about a year and we feed him a mix with a base of kale and other veggies. Don't feed your beardies avocado- it's really bad for them. Falkor really likes when we give him fruit!