I would start by filling his lunch box with foods you know he likes and each day add something a little different.

I found yumbox – bento style lunch box and food pick help my fussy ester. Sandwiches in shapes, such as dinosaurs are eaten a lot more than boring squares.

We pack a salad of cucumber, carrot, cherry tomato, snow peas.
A can of tuna.
1 apple or banana.
2 biscuits or a piece of banana bread.

Interesting reading the comments given to this!

maybe make some really healthy oat biscuits and then drizzle a little bit of chocolate over the top of them.

go to one handed cook website! awesome ideas in there

there are some good comments here

Kathryn had some really good suggestions. You could also try dipping some dried fruit in chocolate. You used to get yogurt covered sultanas and berries that could help kick him back into eating again.

Have you found anything he really likes?

Weetbix slice is a sneaky one because it seems like it is chocolate. My brother loved cruskits instead of sandwiches. Maybe something like an apricot ball or slice (or other fruity slice so it seems like a treat even though it is healthy). Maybe a crumble with fruit and oats or some yogurt might be good.

How did you go with some of these ideas?

Just keep trying different things and eventually you will know what they like… Trial and error

Some wonderful suggestion here from the MoM community. I hope you found some inspiration.

Some really helpful suggestions below.

Crispy Zucchini fried, avocado, rice and some fruits. Prepare like bento style. Kids would love to eat them.