Even with a large water feature, sturdy feeding dishes help keep the diet organized and the enclosure clean. A heavy, low-sided dish for greens and produce that the animal cannot easily tip over reduces mess and makes it easier to monitor how much is eaten. Materials should be nonporous and simple to sanitize, since porous surfaces harbor bacteria in a humid environment.
For insects, escape-resistant feeding dishes help contain feeders so they do not scatter into the substrate, where they may hide or be ingested along with bedding. Smooth-sided bowls keep many feeder types corralled long enough for the dragon to hunt them. Some keepers prefer designated feeding areas or ledges that keep food off the substrate entirely.
While the main water feature serves the dragon's drinking and swimming needs, a separate shallow dish can be useful in some setups. Whatever you choose, prioritize stability, easy cleaning, and appropriate size for a large lizard. Dishes that are too small or too light simply get knocked around and add to the cleanup burden.