In a large mixing bowl, combine the shredded chicken, cream of mushroom soup, chicken broth, sour cream, parmesan cheese, diced bell pepper, garlic powder, onion powder, salt, and pepper. Mix well to combine.
3 cups cooked shredded chicken, 2 cans (10.5 oz each) cream of mushroom soup, 1 cup chicken broth, 1/2 cup sour cream, 1/2 cup grated parmesan cheese, 1 red or green bell pepper, 1 teaspoon garlic powder, 1 teaspoon onion powder, ½ teaspoon kosher salt, ¼ teaspoon black pepper