In a mixing bowl, add cream cheese, mozzarella cheese, cheddar cheese, jalapeños, salt, pepper, garlic powder, onion powder and mix until smooth. Keep aside.
Use a sharp knife to slice halfway through the chicken breasts to make a pocket.
Spread some cheese mixture into each pocket and secure it with toothpicks.
Spread taco seasoning on both sides of the chicken breasts.
Heat oil in a non-stick pan.
Place the chicken and pan fry one side until golden brown. Then flip it over and pan fry the other side.
Cover and cook for about 10-12 minutes or until chicken is fully cooked.
Remove from pan and place on a plate and squeeze some lemon juice on top and garnish with sliced jalapeños and cilantro. Enjoy!