Hello!
Minx told me about this thread so thought I would pop in. I've found being vegan on SW really, really easy. It's not been too much different to how I used to eat, but I can already begin to see where I went wrong. I never used to measure oil and used it in everything, I ate a lot of flour and generally ate too much of the wrong thing whilst thinking I was healthy because it was vegan. Just try not to fall into this way of thinking and you'll be fine.
I've found that I have better losses when I do vegan red days. For these days I generally make tofu scramble, vegan frittata, spicy mince, chilli and bolognese to fill me up on proteins with lots of added veg. I think it's better for me when I measure out my carbs. It's usually more convenient for me to do green days though so when I cut back I stick to things like dal and curry and try to control my carb intake a wee bit by skipping the rice.
I recommend getting hold of some nutritional yeast, which can be found in independent health food shops, GNC or online. It has a nutty, cheesy taste and is packed full of B vitamins (although it does not include b12). It is pretty low syn as you never use it in huge amounts and it's great for making mac n cheeze or just for giving you a cheesy flavour on top of pasta and soups. Try incorporating flax, hemp or walnuts for your omegas but bear in mind that once flax oil is heated up it is nutritionally useless. I hate it in its raw form so generally stick to flaxmeal and seed, which can be sprinkled on to cereals or fruit.
Oh, and Fry's traditional sausages are syn free. Look rank, but it's worth it
Hope this helps, feel free to check out my food diary, the link is in my sig