Your OH is taking the piss Nats! If Finland is anything like here, he'll never get that through the courts. They only ever take main custody away from the mum if she's a crack head or something. 3 days is more than fair I would say!! I know plenty of dads who have to deal with only seeing their kids at weekends. I know there's never going to be a happy outcome for everyone when a family breaks up, but it sounds like he is being a nob and using Maria to get to you.
We were lazy and had pizza and chips for tea. Not sure on the bean lasagne! Especially not baked beans lol! I could imagine a lasagne type thing made with peppers, onions, mushrooms, beans and pulses in a tomato sauce.