Two that I have frozen well and that get a good reception. Sorry, they are as I remember.
1 bag of Morrisons frozen butternut squash chunks, 1 bag of Morrisons frozen sweet potato chunks, 1 bag of frozen chopped onion and some lentils (large handful here) spiced with lots of garlic, cumin, turmeric and chili, lots of stock. Bring to boil, simmer, blend, serve. I fall back on this when unexpectedly feeding lots. With fancy bread, it's awesome.
'some' potato, carrot, parsnip, onion. Can include other root veggies. Add loads of garlic, plenty of cumin, tumeric, ginger or even just curry powder, with 'some' lentils. Bring to boil, simmer, blend, serve.
Hope these help. All are full of nutrition (especially if you use frozen veggies) and not too expensive. The one with the bags of Morrisons veg costs maybe £4-5 at most and I can usually get a dozen decent bowls out of it. I usually serve four of us, with seconds for DH, then freeze the rest in portions.