Here's a link to some of the items available to take the place of animal products in your favorite foods. I've tried several of them and they're pretty good. Vegan versions of taco filling, ground sausage, and meatballs are all quite good. I've used Ener-G egg replacer and earth balance spreads in baking. Daiya makes some good vegan cheese and Go Veggie parmesan style is great with pasta sauce. Tofutti makes great vegan versions of sour cream, cream cheese, and ice cream treats.