A long time ago My beardie stopped eating his greens (Romaine lettuce) I countered it by just prying his mouth open with the tip of my index finger and placing a small piece of lettuce i ripped off into his mouth next to his tongue, he takes care of the rest. But I feel like he should be eating on his own. What are some other good veggies to give that might interest him? He eats his crickets fine, so I know he's just being picky.
I'm not an expert at all, but as far as I know, lettuce doesn't have enough nutritional value to feed as a staple. My dragon absolutely loves dandelion leaves and they're nutritious too. You have to make sure they're free of pesticides and such though. Mustard greens, collard greens, turnip greens are good too and probably more tasty than lettuce.