I found/find with my boys, they would only ask for food when they were bored.
They are older teens now however I make a large bowl of pasta (meat/fish plus veg combo) and keep in the fridge for them to eat.
I also make toasties (meat and cheese) by the dozen and freeze, so they just need to bung in the toastie maker when they wanted.
On Sunday I made chicken, sweetcorn and broccoli pasta (leftovers from Sundays chicken dinner) and I made “pizza” toasties (pepperoni, tomato and mixed cheese)
Tomorrow is franks (hot sauce) cheese and veg pasta with chicken. (loads of hidden veg, broccoli, cauliflower, carrots, courgette, onion, mushroom and squash)
For toasties it’s ham, cheese and tomato.
Cheap and cheerful.