Vegan spread, soya milk, ice cream, chocolate, gravy, stuffing, sausages are all readily available, and cheap in supermarkets nowadays.
As an aside, I do sometimes wonder why veggies eat so many substitute foods like this. Personally, if I were ever to go veggie, I'd rather eat real vegetables than fake meat.
Because, like the meat equivalents, they're quick, easy and tasty. And for some people, choosing not to eat meat doesn't mean choosing not to eat pretend meat. I love Linda McCartney red onion & thyme fake sausages, and I like quorn fake ham, and Tesco quorn cottage pie, although I hardly ever eat any of them.
I regularly eat a vegan pilaf for my tea - bobb's had it too, and likes it. Onion, garlic, brown rice, peanuts or almonds, peas, turmeric, cumin, stock. Tasty, filling and nutritious. I could knock up a vegan soup, curry or dhal easily enough. And I suppose a vegan dessert, using marg instead of butter.