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How to Make Chicken Tetrazzini

Cheesy Chicken Tetrazzini

  • Author: Deborah
  • Prep Time: 20 mins
  • Cook Time: 60 mins
  • Total Time: 1 hour 20 minutes
  • Yield: 8 servings 1x
  • Category: Main Dish
  • Method: Bake
  • Cuisine: American


Cheesy, rich and comforting, this Cheesy Chicken Tetrazzini is a dinner recipe that everyone will love. This baked chicken spaghetti casserole is made from scratch and comes together quickly by using cooked chicken.



  • 2 tablespoons unsalted butter
  • 1/2 pound mushrooms, sliced
  • 2 cloves garlic, minced
  • 1/2 teaspoon salt
  • 1/4 teaspoon pepper
  • 1/4 cup all-purpose flour
  • 2 cups chicken broth
  • 1 cup half and half
  • 4 cups (16 oz) shredded medium cheddar cheese
  • 1/2 pound spaghetti noodles, cooked and drained
  • 4 cups cooked chicken, shredded or cut into a small dice


  1. Preheat the oven to 350ºF. Grease a 9×13 baking dish.
  2. Melt the butter in a large saucepan over medium-high heat. Add the mushrooms and cook until soft, about 8 minutes. Add the garlic, salt and pepper and cook until the garlic is fragrant, about 1 minute.
  3. Reduce the heat to medium. Sprinkle in the flour and cook, stirring for 1 minute. Gradually add the broth and the half and half, stirring until blended. Reduce the heat and simmer until thickened, 3-5 minutes.
  4. Remove the saucepan from the heat. Add 3 cups of the cheese and stir until the cheese melts. Stir in the pasta and the chicken. Pour the mixture into the prepared baking dish.
  5. Sprinkle the remaining 1 cup of cheese over the top of the casserole. Bake, uncovered, until the sauce bubbles and the cheese is melted, 35-40 minutes.

Recipe Notes:

Nutrition information provided as an estimate only. Various brands and products can change the counts.


  • Calories: 534
  • Sugar: 2 g
  • Sodium: 547 mg
  • Fat: 32 g
  • Saturated Fat: 18 g
  • Unsaturated Fat: 2 g
  • Trans Fat: 0 g
  • Carbohydrates: 26 g
  • Fiber: 1 g
  • Protein: 34 g
  • Cholesterol: 116 mg