It's part Italian and part American, creamy, filling, kid friendly, and EASY! This casserole is full of familiar ingredients (most of which you probably already have in your pantry!) in a new way to shake up your weekly dinner routine.
Bring 32 oz of chicken stock to a boil. Break your noodles in half and cook pasta until al dente. Breaking it in ½ makes cutting and serving easier. Strain noodles and reserve 2 cups of chicken stock.
Start to make sauce by melting butter in a skillet on medium-low heat. Add in minced garlic and cook for 2 minutes.
Add in the flour and stir well. Cook for 2 minutes to cook out the flour taste. It should begin to look like toothpaste.
Slowly drizzle in milk while stirring. Then, slowly add in heavy cream, then 2 cups of chicken stock, ⅓ cup parmesan cheese, salt and white pepper. Keep stirring until thickened.
Once it's thickened, stir in shredded chicken and let it cook for 5 minutes.
In a greased 9x13 baking dish, make a bottom layer with ½ of the cooked pasta noodles. Top the noodles with ½ of the chicken and sauce and spread evenly with a spatula.
Repeat a layer or noodles and top with the remaining chicken and sauce (total of 4 layers).
Top chicken tetrazzini with the remaining parmesan cheese and bake at 350°F for 30 minutes uncovered.
Notes
Cook time is based on having chicken already cooked. If boiling your own chicken, add 30 minutes to prep time.