Kiddo is going through the PBJ phase so I make him one every day on whole wheat. Then a rotation of fruit like a banana, apple pieces, blueberries, raspberries, pre-peeled orange/mandarin or strawberries. I sometimes throw in a container of roasted unsalted cashews or pre-shelled pistachios. He also likes carrots with hummus, and cucumber slices with ranch dressing. I will usually put a very small container of either of those in separate with the veggies. If I get around to it sometimes I chop up a block of cheddar to make a bunch of cheddar cubes, and put some of those in with crackers.

Here in Australia, we do crunch and sip in schools. So a seperate lunchbox with just a serve of fresh fruit or veg, uncooked. We do berries, apple, celery sticks, carrot sticks on rotation.

For lunch, we do a sandwich, usually ham and cheese, yoghurt pouch often, babybel cheese, or cheese sticks/strings. With that I also add some kind of fruit or veg too. We also do cooked sausages cut up or leftover pasta bake.

I also add things I hope they will eat but often don't, like falafel, lentil cakes, unusual (to them) fruit and veg. We avoid those kind of bars, as they seem healthy but are really just sugar. If you want them to have sugar, given them something nice, like chocolate, lol.

My husband often puts in a treat, but I only do on a Friday.

Once a week we order from the school canteen. Usually pizza or nuggets and chips or pot noodle.

The things you know they'll eat... that might be something I can't really understand. That's an unhealthy sweet tooth from the looks of things, and I wouldn't go for that.

The celery or cukes (cucumbers)? Well, I'd do "ants on a log" by putting a nut butter (I use an almond butter of sorts) in the celery channel, and then adding raisins on it (I hadn't had raisins in a long time, though). For the cukes, I have no idea how that could work.

Granola bars and cookies, unless they're free of gluten, cow's milk, refined sugars, soy or seed oils (seed oils are hard to find missing from something), I'd stay the heck away from (there is a good chocolate raspberry granola from Seven Sundays I like, though I just treat that like a cereal).

Instead, I'd do the above mentioned things (minus the things they'll eat). For my school lunches back in the day, I had some sort of meat item, seaweed, a drink (usually a refined sugar-free juice box)