Healthy lunches to put in a child's lunch box that are delicious?

I have three children, and I can only answer by what they like to eat.

I cut up Apple slices and add some juice from the "canned in own juices" style pineApple chunks... toss the Apple slices until coated, and they won't turn brown quickly for kids' lunches. I then add those into a baggie or container (I drain them first, but if the Apples are harder, you can soften them in the juice for a lil bit). The recipe is a hit with the kids and adults. It makes the Apple slices sweet and tangy.

Other things I add into a lunch box are the water mix-in packets--huge hit with kids, with a fresh bottle of water or a container of water...

a sandwich with chicken or turkey sliced and cheese on honey wheat bread is usually a hit if you cut it into triangles or squares--change up and the kids love it.

My daughter loves to also have broccoli tops and ranch. She imagines she is a monster eating the heads off of baby trees--and it has made two of her friends eat them too by saying this...

If they are allowed peanut butter (not all schools allow it), I used to make roll-ups. I would take a tortilla and spread peanut butter across it, then I would put a little fruit preserves on 1/3 of the tortilla... roll from jelly side to non-jelly side and cut on bias at middle... kids eat as a rolled up finger food.

We always add a freezer pack.