In a large pot cook your box Rotini pasta until al dente. Rinse and drain.
In a large bowl mix together cooked pasta, chopped chicken, cream of mushroom soup, cream of chicken soup, sour cream, milk, onion powder, garlic powder, salt and pepper. Mix until well combined.
Place in a 9x13 glass casserole dish. Top with grated cheese.
In a glass bowl melt butter and mix in bread crumbs and dried parsley. Mix until well coated. Sprinkle on top of cheese and bake in a 325 degree oven for 40-45 minutes until cheese is melted and sauce is bubbly.