Add oil and ground chicken to dutch oven over medium high heat. Sprinkle with one teaspoon each of salt, pepper and garlic powder. Cook and crumble until no longer pink, then push the cooked ground chicken to one side of the pot.
Add butter to pan. Once melted add vegetables and saute for 5 minutes.
Whisk together corn starch, remaining salt and pepper, paprika, tarragon and chicken broth, then add to pan. Continue stirring as you add milk. Then bring just to a bubble then reduce heat to medium. Cover and let simmer for 20 minutes.
Add in cream and egg noddles. Replace lid and let simmer another 10 minutes.
Once the noodles are tender but not mushy, serve soup with a sprinkle of parsley if desired.