Ooh I've not used that before.
I use Quorn mince (in the orange bag) it can go straight into the freezer, then when I cook, I get it straight out to use too (and oddly I had left over bol, but no spag and I'm eating it while reading your post
I'm a real odd sort, I don't have spaghetti with it - look away now Harri, **whispers** I have rice
it's just me, so no point in making a large pot for the spaghetti).
Anyways, I cook it in my slow cooker, if I make a smaller lot to eat a bit quicker, then I fry it off in the pan (I use Olive Oil to cook it in, no soaking, just a coating as you cook it, so it turns brown) then I add my sauce, tomatoes, etc.,
It always tastes nice, if you aren't a veggie, then you can also add a bisto red cube crumbled as you cook it off in the pan - it gives it a meaty/beef taste moreso.
I have several not veggies in the house and we all eat the veggie version (I won't ever mess my veggie about) and they haven't actually noticed it's not real meat in the spag bol or lasagne I make