Dump the chicken on top of the dry noodles in the pot and let it do the work. It turns into a creamy, savory masterpiece your family will request every week.

 This creamy slow cooker chicken tetrazzini is the kind of weeknight dinner that feels like a hug at the end of a long day. You literally dump dry broken spaghetti into the slow cooker, lay the chicken right on top, pour over a simple sauce, and let the pot do the work. By dinnertime, everything melts together into a creamy, savory pasta dish that tastes like a cozy casserole without all the fuss. Tetrazzini is a classic American comfort dish, and this version keeps all the creamy, mushroomy goodness while using the slow cooker to make it completely hands-off—perfect for busy families.

Serve this creamy chicken tetrazzini with a simple green side salad or steamed broccoli to balance out the richness. Garlic bread or warm dinner rolls are wonderful for soaking up the extra sauce, and a sprinkle of extra Parmesan at the table lets everyone adjust the cheesiness to their liking. For kids, I like to serve it in shallow bowls with a side of carrot sticks or cucumbers for crunch. If you’re feeding a crowd, pair it with a fruit salad or grapes in a big bowl for a fresh, sweet contrast.

Slow Cooker Creamy Chicken Tetrazzini

Servings: 6

Ingredients

12 oz dry spaghetti, broken into 2–3 inch pieces

1 1/2 cups low-sodium chicken broth

1 (10.5 oz) can cream of chicken soup

1 (10.5 oz) can cream of mushroom soup

1 cup half-and-half or whole milk

1/2 cup sour cream

1/2 cup grated Parmesan cheese

1 cup shredded mozzarella cheese, divided

1 (4 oz) can sliced mushrooms, drained (or 1 cup fresh sliced mushrooms)

1 teaspoon garlic powder

1 teaspoon onion powder

1 teaspoon Italian seasoning

1/2 teaspoon kosher salt (plus more to taste)

1/2 teaspoon black pepper

2 tablespoons unsalted butter, cut into small pieces

1 1/2 to 2 pounds boneless, skinless chicken breasts (about 3–4 breasts)

2 tablespoons chopped fresh parsley (optional, for garnish)

Directions

Spray the inside of your slow cooker with nonstick cooking spray or lightly grease it with a bit of butter or oil. This helps keep the pasta from sticking too much along the edges.

Break the dry spaghetti into 2–3 inch pieces and spread it evenly in the bottom of the slow cooker. Try to keep it in an even layer so it cooks uniformly.

In a medium bowl, whisk together the chicken broth, cream of chicken soup, cream of mushroom soup, half-and-half (or whole milk), sour cream, grated Parmesan, 1/2 cup of the shredded mozzarella, garlic powder, onion powder, Italian seasoning, salt, and pepper until mostly smooth. It will be thick, and that’s okay.

Pour the creamy mixture evenly over the dry broken spaghetti in the slow cooker, making sure most of the noodles are coated or at least moistened. Use the back of a spoon to gently press down any very dry-looking spots so they have some sauce touching them.

Scatter the sliced mushrooms over the top of the sauced pasta. Dot the top with the butter pieces so they melt down into the noodles as everything cooks.

Lay the raw chicken breasts directly on top of the mushrooms and sauced pasta, in a single layer. This is important—the chicken sits right on top of the dry noodles, and as it cooks, its juices drip down and help flavor and soften the pasta.

Cover the slow cooker with the lid and cook on LOW for 3 1/2 to 4 1/2 hours, or on HIGH for about 2 1/2 to 3 hours. Cooking time can vary by slow cooker, so start checking on the earlier side the first time you make it.

About 30 minutes before serving, check the chicken for doneness. It should be cooked through (165°F in the thickest part) and easy to shred. If it’s done, remove the chicken breasts to a plate or cutting board and quickly stir the pasta mixture in the slow cooker, making sure to bring any noodles from the edges into the sauce.

Shred or chop the cooked chicken into bite-sized pieces using two forks or a knife, then return it to the slow cooker. Stir well to combine the chicken with the creamy pasta. If the mixture seems too thick or the pasta isn’t quite tender, add a splash or two of extra chicken broth or milk, stir, and cover again.

Sprinkle the remaining 1/2 cup shredded mozzarella over the top. Cover and let cook on LOW for another 15–20 minutes, just until the cheese is melted and the pasta is fully tender and creamy.

Taste and adjust seasoning with a bit more salt and pepper if needed. If using, sprinkle chopped fresh parsley over the top for a pop of color. Serve the tetrazzini straight from the slow cooker while it’s hot and creamy.

Variations & Tips

For picky eaters, you can skip the mushrooms or finely chop them so they mostly disappear into the sauce—my kids hardly notice them that way. If your family loves veggies, stir in 1–2 cups of frozen peas, mixed vegetables, or small broccoli florets during the last 20–30 minutes of cooking so they stay bright and don’t get mushy. For extra protein, add some cooked, crumbled bacon or a handful of diced ham when you stir the shredded chicken back in. If you prefer dark meat, boneless, skinless chicken thighs work beautifully and stay very tender; just trim extra fat so the sauce doesn’t get greasy. To lighten things up a bit, you can use reduced-fat cream soups, light sour cream, and 1% milk instead of half-and-half—just know the sauce will be slightly thinner. For a more garlicky version, add a minced clove or two of fresh garlic to the sauce mixture. If you like a little kick, sprinkle in a pinch of crushed red pepper flakes. For make-ahead prep, you can whisk together the sauce ingredients the night before and store them in the fridge, then in the morning just dump the broken spaghetti into the slow cooker, pour on the sauce, place the chicken on top, and turn it on. If the pasta ever ends up a bit too thick after cooking, simply stir in a splash of warm milk or broth until it loosens to your family’s favorite creamy consistency.