My 4 yo DD is quite a good eater, although also a bit reluctant with sauces, seems like that is quite common. She tends to eat with us.
Things that are popular here are:
salmon/cod spread with pesto and steamed in a foil parcel in the oven
fried mini meatballs - I use pork, beef, lamb or turkey mince, mixed with a few breadcrumbs, a beaten egg, and a load of chopped herbs - pork and dill is the favourite here, then shape them into tiny balls and fry them.
Chicken salad with toast croutons. Woe betide me if I absently mindedly put salad dressing on it though!
Courgette and feta fritters - grated courgette, mashed feta, chopped herbs, bit of wholemeal flour, beaten egg to bind, shaped into fritters and fried.
sausages baked in the oven with pumpkin, sweet potato, peppers, carrot, potatoes.
"kebabs" - skewered meat, peppers, mushrooms grilled and then served in a tortilla wrap. I usually marinate the meat first, but nothing too spicy.
pancakes filled with ham, cheese and spinach.