My kids are 3 & 5. They like DIY wraps, with brown rice, grated cheese, grated carrot, mixed veg like peppers, broccoli etc, I do a pot of beans heavy on the paprika which they do sometimes have depending on mood.
Jacket potatoes are a winner, veg on the side, bean free toppings might be cabbage and creme fraiche (or are my kids weird?!), cottage cheese, pesto, bean free veg chilli, veg curry.
Veg curry, I make one for the kids that's mixed veg in coconut milk with curry powder. There's a recipe online somewhere for a Malaysian curry with cabbage and carrot in Coconut milk, which they like. Sweet potato and spinach. Daal. Chickpea.
Mine like quorn nuggets better than chicken ones so we have those in as emergency food. Pizzas are a winner of course.
Pasta is good. Broccoli cheese bake. Pesto. Tomato sauce. I went through all the veg pasta dishes on bbc food and ended up with a huge list to refer to.
Vegetable pies. I also like quorn chicken in a pie. You can buy or make.
Quiche, again shop bought or homemade but I cheat and buy the pastry. The kids like broccoli and pea quiche. Omelette. Fritatta. Shakshuka (my kids aren't keen but I am!)
Hope this helps.
I need to get back on this myself, a combo of lockdown meaning kids at home much more and my iron levels nose diving means we're eating more meat than I'd like at the mo.