I'm sorry to hear about your PND. A friend has this and I don't know how anyone going through it copes at all. I hope some of the ideas here are a help.
Another nice thing to do with frozen prawn is curry: fry an onion, add a tin of chopped tomatoes, some curry paste or powder, some frozen spinach and the prawns. Goes a sludgy brown colour but tastes delicious. We eat this with 'cauliflower rice', which is just grated then microwaved cauliflower (put it in a bowl, cover with microwavable clingfilm with a few holes poked in, and blast it for a couple of minutes. Don't add any water.) This is because we are avoiding carbs but I've always been a lousy rice cook and this is fool-proof, not to mention healthier, quicker and easier.
And don't forget that you can freeze things part way through preparing them. For instance, if you got some lamb mince (I think Tesco was recently doing two packs for a fiver) you could turn the lot into burgers and freeze half of them for another day. I do lamb burgers by squidging together lamb mince, green olives which I've processed into a paste, and coriander. They're delicious. We have them with fried courgettes and feta cheese, and tomato and red onion salad. But you could equally (and more easily) put them on a bun, with humous and salad.
Other things to do in batches and freeze:
- Basic tomato sauce for using on pasta, as the basis for more complicated sauces such as bolognese, to have with chicken, and on home-made pizza (you can buy ready-made pizza bases, but it's cheaper and nicer to make your own if you can be bothered.)
- Basic cheese sauce for cauliflower, broccoli or macaroni cheese, to have in pancakes with snips of ham and steamed leeks, to put on top of lasagne (not strictly authentic, but lovely)
- Savoury muffins, eg feta and sun-dried tomato, blue cheese and walnut, spinach and parmesan, which are really easy, good for using up odds and ends, and turn home-made soup into a meal
- Portions of cooked veg and accompaniments, eg mash, onion gravy, ratatouille, or fried mushrooms, so all you have to do to make a meal is defrost something and grill some sausages, or fry some mince with an onion to make a cottage pie
Re meal planning: I find the easiest way to do this is to plan around the veg you want to eat. So if you want to have cottage pie one night with broccoli, plan on freezing any leftover pie, and using (the rest of the broccoli the following day for lunch with poached eggs and anchovy butter (this is what I've just had - delicious, You can do all the broccoli the night before and just reheat at lunchtime, to make it easier). Then every so often you can all have different leftovers to clear out the freezer, and you don't have that dispiriting feeling that the fridge is full of slowly rotting bits and pieces of veg. Incidentally, if you notice that happening, that's the time to make soup (to have with your muffins) or veg curry (as prawn curry above but with whatever veg you've got knocking about and a tin of chickpeas instead of prawns).