Chicken Tetrazzini from Giada

6 tablespoons unsalted butter 1 tablespoon olive oil 4 boneless skinless chicken breast halves 2 1/4 teaspoons salt , plus more for pasta 1 1/4 teaspoons[...]

5 lbs stewing chicken , cut into serving pieces 1 onion , studded with 2 clove 2 stalks celery & leaves salt 1/2 bay leaf 1 carrot 3 cups water 4 tablespoons[...]

12 ounces egg noodles or 12 ounces spaghetti , linguini, any other pasta 12 ounces fresh mushrooms , sliced (about 4-5 cups) 1/2 cup unsalted butter 1/4 cup[...]