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Chicken Tetrazzini with Rotisserie Chicken
This chicken tetrazzini is comforting and supremely creamy; a cheesy pasta bake loaded with juicy chicken and plump mushrooms. When you bake this pasta casserole, some of the sauce bakes into the pasta, the flavors marry and WOW - something wonderful happens. You’ll know what I mean when you try it. Ridiculously good, easy to prepare, kid friendly, reheats well and freezer safe. P.S. you can further simplify this by using rotisserie chicken.
Main Dishes / Chicken

Difficulty: easy
Ingredients
- For the Chicken Tetrazzini:
- 12 oz thin spaghetti or linguine
- 4 cups shredded rotisserie chicken, *or cook 2 lbs chicken breast
- 1 pound mushrooms, thickly sliced
- 1 medium onion, finely chopped
- 4 garlic cloves, minced
- 2 Tbsp Olive Oil
- For the Creamy Sauce:
- 4 Tbsp unsalted butter
- 1/3 cup all-purpose flour
- 2½ cups low sodium chicken broth
- 1 Tbsp lemon juice
- 1½ cups half and half, or sub with equal parts milk & heavy cream
- 1 tsp sea salt, or to taste
- ¼ tsp black pepper, freshly ground
- ¼ cup parsley, chopped, plus more to garnish
- 1½ cups shredded mozzarella cheese
Directions
- Preheat Oven to 350˚F. Cook pasta in salted water according to package instructions then rinse to stop the cooking process, drain and set aside.
- Shred 4 cups of rotisserie Chicken into bite-sized pieces and set aside.
- In a saucepan, add 2 Tbsp oil then sliced mushrooms and sauté 3 min or until soft. Add diced onions and cook until onions are soft (5-7 min). Add minced garlic and sauté another 1-2 min. Transfer to a separate dish.
- In the same pan, melt 4 Tbsp butter and add 1/3 cup flour whisking until lightly golden (1 1/2 min). Add 2½ cups chicken broth, 1 Tbsp lemon juice, 1 tsp salt, 1/4 tsp pepper and whisk until smooth. Add 1 1/2 cups half and half and bring to a simmer then season sauce to taste.
- Return chicken, mushrooms and pasta to the pot then season to taste with salt and pepper, sprinkle in 1/4 cup chopped fresh parsley and stir to combine. Sprinkle the top generously with shredded mozzarella, cover with foil and bake at 350˚F for 25 mininuts then remove lid and continue baking 5 minutes.