Oh if they have school dinners then stop worrying!
Good fresh bread.
Cheese, ham, chicken, hummus
Babybels, sausage rolls, mini scotch eggs, cocktail sausages, crisps
Carrot, cucumber, celery, tomatoes
Satsumas, apples, grapes, strawberries
Yoghurts
Little fairy cakes
Milk, juice, squash, water
Just rotate round for variety.
Mine would die of happiness on that diet. Plus it’s summer! They really don’t need two hot meals a day.
And as someone who has previously had HG- try and eat a snack or time your mess to help you during food prep.
Good luck, it’s hideous but honestly, don’t make life any more difficult for yourself right now than you need to.