Yes, there is a vegan version of all that good stuff, including sour cream, butter, bacon bits, and even cheddar cheese shreds!
My recommedations for brands:
- Sour cream: http://www.tofutti.com/ss.shtml
- Butter: http://www.earthbalancenatural.com/
- Bacon Bits: http://www.bettycrocker.com/products/bacos (there are others, too. Just read the ingredients; you'd be surprised how many "bacon" products actually use textured vegetable protein instead)
- Shredded cheese: http://www.daiyafoods.com/
I ate mine too quickly to snap a picture. Maybe next time, because there will be a next time!