I could never understand the reason for the existence of curry sauce - they are not even traditional to English curries which are a law unto themselves.
I use frozen cauliflower, steam it until about 80% cooked, then chop it roughly, not as fine as rice and then use that as a base for the curry.
As you seem to be fairly low in the range of Hba1cs and intend to cut out a lot of carby stuff you might find that is all you need to do. The brown pasta and bread will not contribute to the reduction but you might not need to.
I am very sensitive to carbs, but I can do stirfries eat sausages and stews and be in the limits I need to set for myself. I find that swede is just as good as potato to make mash - possibly even better for bubble and squeak.
I have been using a pressure cooker to cook the swede as gas is so expensive at the moment but it is a big time saver - I had forgotten just how fast it is.