Prepare southwestern chipotle seasoning, if making at home.
Prepare cilantro lime sour cream, if using. Cover and place in the refrigerator until ready to use.
Cook your egg white patties according to package directions.
Allow them to cool slightly and then cut each patty into 6 pieces.
Heat the olive oil in a skillet over medium heat.
Add in your cut egg white patties and 1 tbsp southwestern chipotle seasoning. Save the remaining seasoning for another recipe.
Toss until coated and allow to cook for an additional one minute.
Evenly divide your egg white patties and avocado between your corn tortillas. Top each taco with 1 tbsp cilantro lime sour cream. Save the remaining sour cream for another meal.
Finish off with fresh cilantro and lime, if desired.