Eventually I found a vegan recipe that I thought I'd try and one that also looked pretty easy to prepare (it was). I found the recipe here on Leslie Durso Veggie Dreamgirl site. I was probably a little more liberal with the stock than suggested. I halved the recipe but then there didn't seem to be enough fluid to cook the cauliflower. I also used leeks instead of onion, because I had already bought them. It turned out to be quite a nice sauce, although I think it would be a tad bland without the addition of just that something extra, be it spices, herbs or other flavoursome vegetables. I decided to add some mushrooms and sundered tomatoes, along with a touch of cayenne pepper - I could have used more than what I did. And perhaps I should have wandered down to the garden to cut some basil or parsley to go in at the end. All in all, quite a nice base to build on for other pasta meals.
Now the other thing I need to do is be more organised when it comes time to take photos of the finished product. I usually find myself running around madly trying to find accessories, plates, mats etc, not to mention finding a space on the kitchen bench that isn't covered in the remnants of my preparation. And then there's the issue of my dinner going cold while I take photos. I probably need to also get some sort of lighting rig set up as the light isn't quite as bright as I'd like or at least have the tripod handy so that I don't have to use such a wide aperture. That would give a bit more focus to the final product.
Anyway it was an enjoyable meal and finished off with a glass of red.