For convenience, I pre-prepare stuff & just shove in freezer. So when I have time, I make a massive batch of onions, peppers, courgettes, aubergines & toast with garlic. Then divide up & freeze, ready to add to tagine or shashouka.
But pre-sliced onions, cubed butternut squash, etc.
I know these are not “ready made” but they really cut time. I made a chick pea & butternut squash tagine earlier in just 15-20 mins. I do double of everything so my freezer is well stocked. I even order double Gousto stuff, so all the spices etc are pre-packaged ready to roll!
Also quick -
omelettes (can use those roasted veg or just chuck spinach straight from bag)
gnocchi - add Boursin or fry spinach ones in butter & sage, pasta with broccoli, blue cheese & walnuts
Sachets of flavoured cous cous
Ready sliced mushrooms to fry in butter & garlic, only takes a few mins & add to ready prepared garlic bread
I sometimes make a batch of rice & put in fridge then make special fried rice. Only takes 10 mins.
Toasted sandwiches in Breville maker. Mostly cheddar & onion, Brie & relish, that sort of thing.
I don’t own a microwave so the above are all do-able & quick!