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Crockpot Chicken Tetrazzini

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By

Ago Tanfossi

Chef and recipe curator at Global Cucina

Published on February 10, 2026

Updated on April 2, 2026

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Chicken Tetrazzini is a classic Italian-American comfort dish that combines tender chicken, mushrooms, and pasta in a luscious, creamy sauce. This slow cooker version honors the tradition of simple, hearty ingredients while embracing the ease of modern technique.

4 hr 50 min
6 servings
Capolavoro Score 4.3/5 · 11 votes
Crockpot Chicken Tetrazzini

Ingredients

  • 2 lb Boneless Skinless Chicken Breast, cut into cubes (about 3 large breasts)
  • 1 cup yellow onion, diced (about 2 cups)
  • 8 oz White Mushrooms, cleaned and sliced
  • 1 tsp Garlic powder
  • 1 tsp Oregano, dried
  • 1 tsp Salt
  • 1 tsp black pepper, freshly cracked
  • 1 cup Chicken Broth
  • 8 oz Cream cheese, cubed
  • 0.5 lb Spaghetti, uncooked, broken in half
  • 1/2 cup Pecorino, grated, about 50g
  • 2 tbsp Italian flat-leaf parsley, fresh, chopped

Equipment

  • Slow Cooker

Instructions

  1. 1

    Combine the cubed chicken, diced onion, sliced mushrooms, garlic powder, oregano, salt, pepper, and chicken broth in the crockpot. Stir gently to mix all ingredients evenly.

  2. 2

    Cover and cook on high for 4 hours, allowing the chicken to become tender and the flavors to develop.

    4 hr

  3. 3

    After 4 hours, break the uncooked spaghetti in half and add it to the crockpot. Stir gently to submerge the pasta fully in the liquid.

  4. 4

    Distribute the cubed cream cheese evenly over the top of the mixture.

  5. 5

    Cover and cook on low for an additional 30 minutes, allowing the pasta to soften and the cream cheese to melt into a creamy sauce.

    30 min

  6. 6

    Stir thoroughly to incorporate the cream cheese into the sauce, creating a smooth, velvety texture.

  7. 7

    Replace the lid and let the dish rest for 5 minutes to finish cooking the pasta. If the sauce appears too thick or the pasta needs more cooking, add ½ cup of water or broth and continue cooking until desired doneness is reached.

    5 min

  8. 8

    Serve garnished with grated Parmesan and chopped fresh parsley.

Ago's Notes

  • This recipe welcomes additional vegetables such as bell peppers, broccoli, sun-dried tomatoes, canned artichokes, or peas (add peas at the end to preserve texture).
  • Feel free to adjust herbs and spices according to your pantry-dried thyme, parsley, Italian seasoning, or even tarragon can complement the dish.
  • Breaking the spaghetti is essential for even cooking in the crockpot; unbroken pasta tends to cook unevenly.
  • Parmesan cheese adds authentic flavor, but mozzarella or provolone can be used as budget-friendly alternatives.
  • Leftovers can be refrigerated for up to 4 days or frozen for 3 months. Reheat gently with a splash of broth or milk to restore creaminess.

This rich and comforting Chicken Tetrazzini offers a perfect blend of creamy flavors and tender textures. The crockpot technique ensures even cooking and melded flavors with minimal effort. While it may differ slightly from traditional Italian versions, its simplicity and delicious outcome make it a welcome addition to any meal. Serve this dish as a satisfying main course, perhaps paired with sautéed greens or a crisp salad to complete the Italian-inspired experience.

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Main CourseComfort Food

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