This chicken tetrazzini recipe is as easy as mixing all the ingredients together in a bowl, layering it in a casserole dish, and baking until it's a bubbly golden brown.
Preheat the oven to 325F and lightly grease a 9x13 casserole dish.
Cook spaghetti noodles according to package directions, removing from the water once they are al dente.
In a large bowl add soups, sour cream, chicken stock, shredded chicken, sea salt, garlic powder, onion powder, and pepper and mix.
Toss the cooked spaghetti into the sauce and mix until well combined.
Add the spaghetti and chicken mixture into the casserole dish and top with ¼ cup parmesan cheese, cheddar, and mozzarella.
Bake for 30 minutes covered with tinfoil. Remove tinfoil and bake for an additional 10-15 minutes.
Optionally garnish with additional parmesan cheese and fresh chopped parsley.
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Notes
This particular sauce is thick. If you like a thinner sauce, reduce the count of cream of mushroom or cream of chicken soups to 2 cans total instead of 3, or simply add more chicken stock to loosen it up.
Shred or cube the chicken. You can easily shred a precooked rotisserie chicken for quicker prep. This dish also tastes great with shredded turkey!
Store leftovers in an air-tight container kept in the refrigerator for up to 3 days.
This dish is best served the day of because the sauce soaks into the noodles as it sits. When reheating, you might want to add a bit of water or chicken stock to loosen it up.