Begin by preheating the oven to a temperature of 350°F (175°C).

In a medium-sized mixing bowl, combine the chicken, cream of chicken soup, sour cream, cheddar cheese, mixed frozen vegetables, garlic powder, and salt.

Using a suitable utensil, thoroughly mix the ingredients until they are well integrated.

Proceed to segment each biscuit into four equal parts and subsequently incorporate these parts into the chicken mixture.

Ensure a 9x13 inch casserole dish is adequately greased to prevent sticking. Pour the chicken and biscuit mixture into the dish, ensuring even distribution.

Place the casserole dish in the preheated oven. Allow it to bake for approximately 35-45 minutes or until the surface exhibits a golden-brown hue and the mixture bubbles.