You do have most of the basics correct. Waxworms, mealworms and superworms should only be fed as a treat not as regular insect fare. Crickets, silkworms, butterworms and roaches are the best stable insect diet. The last three being the best, with crickets just the easiest and cheapest to aquire.
You need a variety of greens, not just turnup greens. Collard greens, dandelion greens, mustard greens, endive, escaroli and other dark leafy greens, plus various mixed vegetables, some flowers and fruit should all be offered. The key is variety and staying away from too many of any one type of greens. Mixing 2-4 different greens plus sprinklings of vegetables on the salad is best.
Also, bearded dragons don't need a large dish of water at all. Most don't even drink from water dishes. If your dragon is an adult, you deffinitely don't need to have a waterdish at all. ALot of people will soak their dragons regularly but from my experience, if the dragon is eating his greens regularly and having no trouble's pooping, there really isn't any need to provide water or give daily or even weekly soaks.
Having water available or daily mistings is more for very young to juvenile dragons who dehydrate alot easily. Misting the dragon a couple times a day or a dailly soak is a good way to en sure they stay hydrated. That said, I think it's more a personal thing to do for your dragon. If they love the bath and it's not a stressful event for them, then giving them a weekly soak won't hurt them.
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PHLdyPayne