Perhaps you’re unsure how to boil the frozen chicken. Here are some guidelines for boiling safely. The first step is to use a large enough cooking pan to accommodate a large volume of water. Fill the pan halfway with water and add the chicken. Make sure it comes to a boil before the chicken absorbs the water. Keep an eye on the temperature since the chicken will be overcooked if the water evaporates before it reaches the desired internal temperature.
Reduce the heat and add the vegetables once the chicken has reached the correct temperature.