Sorry, I've just seen the update that the kitchen is not possible.
Do you have a gas BBQ? Or any actual camping equipment - gas ring, little wood burner, a Kelly kettle? Or could you borrow some from someone? Can you "play camp" by cooking in the garden some evenings?
Definitely get the numbers of the good takeaways - maybe see if you can do a deal with any that you are likely to use a lot in the next few weeks, go in when it's quiet, explain that you have no kitchen and will be buying dinners for your family of X for Y days each week for likely Z weeks, and could they do a discount?
Can you borrow a slow cooker from someone (or buy one)? That can give you other options for more stew type dinners, or things like a joint of meat.
Oven means you could do baked potatoes or oven chips, and I know Ive seen recipes on here (although I have no idea where to link, sorry) for oven -baked risottos. I often cook lamb chops in the oven if I have it on anyway to roast baby potatoes rather than turn on the grill. And DM used to "roast" the breakfast fry on Christmas morning in the oven while we were out at mass, and that worked fine on low temperatures (for her it was about not grilling and having it ready when we all got in - for you it's more about practicality, so higher temps for shorter might work too).
Couscous only needs boiling water to "activate". I generally cook "petits pois" style peas by only pouring boiling water over then and not actually turning on heat. Spinach is also wilted to perfection by just putting it into a colander and pouring a whole kettle of boiling water through it (letting water drain down the sink). And while I haven't tried it, if you used freshly boiled water, and maybe renewed it once, you might be able to cook fresh pasta without needing heat (at least the smaller ones like spaghetti and tagliatelle - maybe not quite the ravioli parcel types).
If you have your freezer available still, do you have time before they take the gas hob to make a batch of family sized lasagnas to freeze, or maybe things like cottage pie, chicken and mushroom in white wine/cream sauce covered in mash, or smoked fish and broccoli in white sauce covered in mash - different meals that only need an oven later on? Even if you have one or 2 per week, this could make a big difference.
Some nights, get a rotisserie chicken from the deli and a loaf of crusty bread and some salad for a nice meal that doesn't need any cooking.
Look at the camping threads for ideas for cooking in the open air or search camp cooking or backwoods cooking. You can make tinfoil parcels of food to cook on a BBQ/fire - we do things like small strips of salmon with finely chopped carrot, onion and potato which is nice. Skewers of vegetables (peppers, onion segments, tomatoes, mushrooms, courgettes etc) all work well. Mushrooms in tinfoil parcels with some butter and seasoning. I suspect that small diced potatoes could also work. Bananas with some chocolate in tin foil or in the banana skin makes a nice dessert. Or apples sliced with sugar, cinnamon and some raisins.