Welcome to the site,
My little boy is the same, not fussed on sarnies or picky foods, hes a hot meal man!
A nice thick home made soup is always a winner with him, he loves them, its packed with veg and it fills him up or I'll give him a light pasta dish, rissoto, that type of thing along with the old favourites of beans on toast, egg on toast, pizza etc. I still throw in a sandwich every now and again, I'm sure one day he'll eat them!

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