INGREDIENTS
1 1/2 lb
Chicken breasts, boneless skinless
1 1/2 cups
Mushrooms
1/2 tsp
Tarragon, dried leaf
1
Yellow onion, small sweet
1/2 cup
Chicken broth
2 10.5 ounce cans
Cream of chicken soup
1 lb
Penne pasta
1/4 tsp
Pepper
2 cups
Cheddar cheese
1 cup
Sour cream
5-quart or larger