Combine the cream of chicken soup, cream of celery soup, shredded chicken, corn and peas, chicken broth, milk, cream cheese, garlic salt, and onion powder in a large, deep skillet. Warm over medium heat stirring often until it starts to simmer.
Turn the heat down and stir in the cooked rotini. Cook and stir for a few minutes until everything is combined and heated through.
Remove from heat and stir in shredded cheddar cheese.