Place the chicken breasts in a large skillet or pot.
Pour the chicken broth and water over the chicken.
Sprinkle the taco seasoning mix evenly over the chicken.
Bring the liquid to a simmer over medium-high heat.
Reduce the heat to low, cover the skillet, and cook for 15 to 20 minutes, or until the chicken reaches an internal temperature of 165 degrees Fahrenheit.
Remove the chicken from the skillet and place it on a cutting board.
Use two forks to shred the chicken completely.
Return the shredded chicken to the skillet and toss it with the remaining cooking liquid until the chicken is coated and heated through.
Warm the tortillas according to package directions.
Fill each tortilla with the seasoned shredded chicken and add your desired toppings. Serve immediately with lime wedges.
Notes
For a slow cooker option, place chicken, broth, water, and seasoning in the slow cooker. Cook on low for 4 hours or high for 2 hours. Shred the chicken and toss with the liquid before serving.
Use this simple shredded chicken filling for burrito bowls or nachos.
For extra flavor, add 1/4 cup of mild green chiles to the liquid when cooking.