Heat olive oil in a skillet over medium heat.
Add diced chicken breasts to the skillet.
Sprinkle taco seasoning over the chicken.
Cook the chicken for about 5-7 minutes, stirring occasionally, until fully cooked.
Warm the corn tortillas in a separate skillet for about 30 seconds on each side.
Assemble the tacos by placing cooked chicken in each tortilla.
Top with sliced avocado, diced tomatoes, and onions.
Sprinkle fresh cilantro over the top.
Serve with lime wedges and salsa on the side.
Enjoy your delicious chicken tacos!