Cook bacon according to package directions. Cooking vegan bacon may vary from brand to brand depending on the one you choose. Transfer to a paper towel-lined plate and let cool.
While bacon is cooking, slice tomatoes and chop cilantro.
Lay a clean kitchen towel in a medium bowl. Heat a skillet and lightly char tortillas, 30 seconds to 1 minute per side. Transfer warmed tortillas to a towel-lined bowl, and cover with towel to keep warm while you finish remaining tortillas.
Make tacos up or serve, letting people make their own tacos by layering bacon, salsa, lettuce, onion and avocado, on tortillas. Top with your favorite vinaigrette, if desired.