I think SW as a whole, prefer you to do alternate days. TBH I think everyone has a preference for red or green and will have more of their fave days. Our family as a whole don't burn carbs off very quickly and it's just my findings from different trials that my weight loss is slower the more green days I do. It's not like that for everyone.
I don't like pasta either (strange person, I know) so the only free food I'd really eat on a green day are potatoes and baked beans and there's only so many jacket spuds and beans you can eat without going off your trolley LOL. So I only do red days, and I'm a meat lover anyway.
Do whichever day's you're happy with