Another bearded dragon question

Me

So I finally got my babies to eat and I know mealworms aren’t the best for them but that’s what they both like. I normally like to feed mine outside of their tank that way the worms can’t go under the paper towel or can’t hide in other places but I noticed last night that they seem to eat better when I put the worms in their salad. With that being said I only put 3 in with them last night but saw that all were gone within 30 minutes to an hour so how many would be good to put in at a time? Also I usually make their salads when I get off work and leave it in the cool section of the tank and clean whatever they don’t eat out and replace it with fresh fruits and veggies. Is it better to feed insects first then the salad or is the way I’m doing it now better?