In a large pot over medium heat, add the olive oil. Add the chopped onion and sauté 3-4 minutes until translucent. Add in the garlic and cook 1 more minute, stirring constantly.
Now add all the rest of the chili ingredients, except the tofu, and stir to combine. Bring to a boil, then lower the heat and simmer for about 20 minutes, until the tofu crumbles are done baking.
If a thicker consistency is desired, use an immersion blender and blend just a few times. Do this before you add the tofu.
Once the tofu crumbles are done, stir them into the pot. All done! Serve with vegan sour cream, cornbread, tortilla chips, cilantro, tomatoes, hot sauce, vegan cheese shreds and chives, if desired.