1Add diced onion, frozen mixed veggies, cream of chicken soup, garlic powder, onion powder, poultry seasoning, black pepper, and chicken better than bouillon to a slow cooker and stir.
2Add chicken tenderloins to the slow cooker and cover with the other ingredients.
3Set the slow cooker to high for two hours or low for four to six hours.
4Shred the cooked chicken.
5Add heavy cream and cooked pasta to the slow cooker and stir gently.