Vegetables & Fruits
It is a common misconception that bearded dragons need a diet of only feeder bugs, this is 100% inaccurate. Dragons that are only fed feeders are at a high risk for obesity, which will shorten their lifespan. Also it is really hard on a dragon's liver to digests lots of proteins over and over without any greens to aide in digestion. They can develop liver cancer as well. Dragons are opportunistic feeders, in fact they are very lazy when it comes to getting food especially once they are adults. Part of having healthy and happy dragon is offering them a variety of fruits and vegetables daily along with their feeder bugs. Dragons can see in color so offering a variety of fruits and veggies are great because it will peak their interest to investigate their bowl. Dragons under 1 year old should have a small salad daily and 8-12 bugs a day 7 days a week. If your dragon is 1 year old or older he/she should get a salad every day, and 5-10 feeders a day 6 days a week. It is ok to give them a day off eating feeders. The reason is they are less active then when were as babies so they are slower to digest their foods. To compare it to humans think about if all you ate were steaks 7 days a week and did nothing but sit on the couch and watch TV, not a very healthy lifestyle.
Save Your Money and Your Greens
Buy your greens/fruits/veggies every week at the grocery store or local farmer's market. Wash them, then chop, shred or dice them ahead of time and put them in airtight tubs in the refrigerator so they last longer, and are easy to grab at the start of every day. For leafy base greens chop them and put them into either airtight containers or Ziploc bags with paper towels in between to ensure they don't get soggy.
Right Size Your Fruits & Veggies
When choosing sizes of veggies and fruits always make sure that nothing you give your dragon is bigger than the space between their eyes. Baby dragons always think they can eat any size food, and often choking is a result, sometimes even death.
My trick to get the picky dragons to eat greens/veggies/fruits is to give them their salad in the morning and then in the late afternoon I feed the live foods, crickets/worms etc. They will be hungry all day or they will eat their salad. Eventually they will cave and eat it. Doing this for a while will train them to where they will see the salad and dive right in because they will know that no other food is coming until much later. Keep in mind a dragon NEEDS a balanced diet, they need greens and if they only eat live food protein they can become obese and have liver issues so make the effort to get your dragon on the right track. Also you might be making them nervous, stop watching them when you feed them. In the wild a dragon will run away rather than it if it feels threatened in any way. So stop starring and I bet you will come back to a chewed up salad. I even had an Instagram follower once that secretly video taped her dragon after she fed him greens and walked away and he dove right in, so don't give up try giving them some privacy.
This is the nutrition chart we use from www.BeautifulDragons.com (see full view)