I buy wooden coffee stirrers and make 'lollipops' (kebab skewers but without the pointy end)
We aren't veggie so ours often have some kind of meat on them but no reason you couldn't do them with halloumi or tofu instead. I usually do them with combinations of sweet potato, courgette, red onion, mushrooms etc.
'Lollipops' also work for fruit or cold 'salady' type stuff (e.g. tomatoes, cucumber and mozzarella balls)
A firm favourite for a quick tea is pasta with tomato and marscapone sauce. Usually the supermarkets have deals in fresh pasta and sauce, if you use fresh pasta it can be in the table in the time it takes to boil a pan of water for a few mins. I often chop spinach into it to make myself feel better.
Tilda do mini micro rice packets for children, mine love the mild curry ones again for a 'quick can't be bothered to think of anything tea'. They have a few vegetables in them.
Breaded mozzarella sticks, potato waffles and peas.
Stir fries - mine like eating the noodles and sometimes they also eat some baby corn, a bit of grated carrot or a mange tout by accident.
Cauliflower cheese, roast potatoes and green veg
Cheese and onion pie with peas
Fried rice