Pasta 'pomodoro' but with added veg. I start it with a sofritta: carrot, onion and celery, then add garlic, red and yellow peppers, courgettes, herbs, tinned chopped tomatoes. Children love it. With pasta, grated cheese, fresh chopped basil. Add chilli flakes and black olives, capers and anchovies on top if adults want it to have more punch.
Mild curry: new potatoes with skins on, carrots, onions, peas, spinach, tinned chopped tomatoes, sweetcorn if you like it. If they are really ok with most veg you can add small cubes of kohl rabi or finely shredded savoy cabbage, with fried garlic and ginger, turmeric, cumin, coriander, fenugreek and curry leaves. add chilli if you like a punch. With rice or naan
Veggie 'Thai' curry - sugar snaps, baby corns, red and yellow peppers, cashews, wilted greens e.g. pak choi, coconut milk, dollop of peanut butter, thai green curry sauce, beansprouts - with rice or noodles
I add steamed cauliflower (a whole one, cut into small florets) and leek to macaroni cheese, with roasted baby tomatoes on the side. If cauli is too strong a flavour, romanesco green cauli is much sweeter. Or you could use broccoli.