In a bowl, combine Greek yogurt, mayonnaise, parsley, cilantro, garlic, and vinegar. Season with salt and pepper to taste. Mix well.
Heat olive oil in a skillet over medium heat. Add shredded chicken and cook until heated through. Season with salt and pepper.
Warm tortillas according to package directions. Place shredded chicken on each tortilla. Top with chimichurri sauce and your favorite taco toppings.
Serve immediately and enjoy!
Video
Notes
You can use rotisserie chicken for convenience.Adjust the amount of garlic and vinegar to your taste.For a spicier sauce, add a pinch of red pepper flakes.