DS - now 3.5 - went through a really quite fussy phase, where he was fairly limited to chips, things that went with mash (fish fingers, sausages), thinks that went on bread (toasties, eggs, beans, sandwiches), very occasionally something with rice (one particular type of curry, but never homemade, sausage casserole on a good day). He also ate home made fishcakes, home made chicken goujons, and any of the above that came out of a packet. He outright refused pasta.
It wasn't a problem to get good nutrition into him - he'd eat protein, carbs, some veg (peas, sweetcorn, roasted parsnips, sometimes carrots), as much fruit as he could get his hands on, eggs, cheese etc - but it was getting a bit inconvenient and repetitive. A bit high in processed pork too (he LOVES ham, sausage and bacon).
He has now decided he loves stir fried noodles, and the other day I managed to smuggle some peppers and mushrooms into them. He will now eat home cooked pasta, although not at school (to be fair it does look rank). Under duress he'll eat lasagne, and yesterday he ate Spaghetti Bol, despite complaining he didn't like it at all he cleared the whole bowl. He also polished off a plate of roast dinner with beef and yorskhires on over Easter.
Frankly if you'd have told me he'd eat that a year ago I'd have laughed in your face.
So, looking for inspiration of other sure-fire hits in your house to capitalise on this!
SO far thinking about quiche, omelette (both refused outright previously), fish pie, maybe some other curry recipes. Not sure the food DH and I eat is particularly suitable - lots of pasta with strong flavours like chilli, onion, rocket etc - so I'm not going to start there.
DD is less fussy, although much less keen on meat.