Creamy Mushroom Chicken Spaghettini

Featured in: Warm Cozy Dinners

Creamy Mushroom Chicken Spaghettini combines tender chicken breast and delicate spaghettini in a silky mushroom cream sauce. Ready in just 40 minutes, this Italian-inspired main dish balances richness with a lighter approach using low-fat milk and fresh herbs. Perfect for weeknight dinners or entertaining, each serving delivers 31g of protein and authentic comfort-food flavors.

Updated on Tue, 20 Jan 2026 16:19:00 GMT
Golden seared chicken strips and al dente spaghettini pasta coated in a creamy, savory mushroom sauce in a white bowl.  Save
Golden seared chicken strips and al dente spaghettini pasta coated in a creamy, savory mushroom sauce in a white bowl. | sagekettle.com

The first time I made this on a drizzly Tuesday, my husband kept wandering into the kitchen asking what smelled so incredible. There is something about mushrooms hitting hot oil that makes a whole house feel cozy. We ended up eating standing up at the counter because waiting five minutes for plates felt impossible.

Last winter my sister came over exhausted from work and I made this for her. She took one bite and went completely silent for a full minute. Sometimes food just wraps you up like a blanket.

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Ingredients

  • Whole wheat spaghettini: The nutty flavor pairs beautifully with mushrooms and adds extra fiber
  • Boneless chicken breasts: Pound them to even thickness so they cook uniformly and stay juicy
  • Cremini mushrooms: They have more depth than white mushrooms but any variety works here
  • Low-fat milk: Creates the creamy base without making the sauce too heavy
  • Fresh thyme: Earthy and fragrant though dried thyme works in a pinch
  • Dijon mustard: My secret ingredient that adds a subtle depth nobody can quite place

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Instructions

Get your pasta going:
Bring a large pot of salted water to boil and cook the spaghettini until al dente then scoop out half a cup of the starchy cooking water before draining.
Season and cook the chicken:
Pound the breasts to even thickness and season with salt and pepper before sizzling them in olive oil for about six minutes per side.
Build the flavor base:
In the same skillet sauté mushrooms and onion until golden then add garlic and thyme for one fragrant minute.
Create the sauce:
Sprinkle flour over the vegetables and stir constantly then gradually whisk in the broth followed by milk until everything bubbles into a smooth velvety consistency.
Bring it all together:
Stir in Parmesan and Dijon mustard then add the sliced chicken and cooked pasta tossing gently and adding splashes of pasta water until the sauce perfectly coats every strand.
A close-up of Creamy Mushroom Chicken Spaghettini with fresh parsley and grated Parmesan, ready to serve.  Save
A close-up of Creamy Mushroom Chicken Spaghettini with fresh parsley and grated Parmesan, ready to serve. | sagekettle.com

This recipe became my go-to when friends are having a rough week. It is the kind of meal that makes people feel taken care of without any fuss.

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Making It Yours

Swap turkey breast for chicken or add white beans to make it vegetarian without losing any heartiness. The sauce base stays the same and happily accommodates whatever protein you choose.

Get That Restaurant Finish

The difference between good and great comes down to not overcrowding the pan when searing the chicken. Let those pieces develop a proper golden crust which adds flavor you cannot get any other way.

Wine Pairing Magic

A crisp Pinot Grigio cuts through the creaminess while letting the mushroom shine. Something about that combination just works on a molecular level.

  • Use glutenfree pasta and a glutenfree flour blend if needed
  • Add baby spinach in the last minute for extra nutrition and color
  • Make it extra rich with a splash of half and half at the very end
A skillet of Creamy Mushroom Chicken Spaghettini next to a glass of white wine, highlighting a comforting dinner. Save
A skillet of Creamy Mushroom Chicken Spaghettini next to a glass of white wine, highlighting a comforting dinner. | sagekettle.com

Some recipes are just keepers the kind you return to again and again because they never let you down.

Recipe Q&A

Can I use a different pasta shape?

Absolutely. While spaghettini's thin strands coat beautifully in the cream sauce, pappardelle, fettuccine, or penne work equally well. Adjust cooking time according to your chosen pasta's package instructions.

How do I prevent the sauce from lumping?

Whisk the broth and milk together gradually into the flour mixture, stirring constantly over medium heat. This gradual incorporation ensures a smooth, silky sauce without lumps or graininess.

Can I make this dish ahead?

Yes, prepare the sauce and chicken up to 2 hours ahead and refrigerate separately. Cook the pasta fresh just before serving, then combine all components. This prevents the pasta from absorbing excess moisture.

What's the best way to slice the chicken?

After cooking and resting for 2-3 minutes, slice against the grain for maximum tenderness. This breaks up the muscle fibers and creates more tender, succulent pieces that absorb the sauce beautifully.

How can I make this sauce richer?

Substitute half the low-fat milk with heavy cream or half-and-half for a more luxurious sauce. You can also increase Parmesan to ⅓ cup. For deeper flavor, add a splash of dry white wine during the mushroom sauté.

Is this suitable for freezing?

The sauce and cooked chicken freeze well for up to 3 months. However, avoid freezing the cooked pasta as it becomes mushy upon thawing. Prepare components separately and assemble fresh for best results.

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Creamy Mushroom Chicken Spaghettini

Tender chicken and spaghettini in a velvety mushroom cream sauce—comforting, satisfying, and surprisingly light.

Setup Time
15 min
Time to Cook
25 min
Total Duration
40 min
Created by Elena Brooks

Classification Warm Cozy Dinners

Skill Level Easy

Cuisine Italian-Inspired

Batch Size 4 Portions

Dietary Details None specified

Components

Pasta

01 10.5 oz whole wheat spaghettini or regular spaghettini

Chicken

01 2 medium boneless skinless chicken breasts, approximately 12 oz total
02 1/2 teaspoon salt
03 1/4 teaspoon black pepper
04 1 tablespoon olive oil

Mushrooms & Vegetables

01 9 oz cremini or white mushrooms, sliced
02 2 cloves garlic, minced
03 1 small yellow onion, finely diced
04 1 teaspoon fresh thyme leaves or 1/2 teaspoon dried thyme
05 1 cup baby spinach, roughly chopped, optional

Sauce

01 2 tablespoons all-purpose flour
02 1 cup low-sodium chicken broth
03 3/4 cup low-fat milk, 1% or 2%
04 1/4 cup grated Parmesan cheese
05 1/2 teaspoon Dijon mustard
06 Salt and pepper to taste

Garnish

01 2 tablespoons fresh parsley, chopped
02 Extra grated Parmesan cheese, optional

Directions

Step 01

Prepare Pasta: Bring a large pot of salted water to boil. Cook spaghettini according to package instructions until al dente. Reserve 1/2 cup pasta water, then drain and set aside.

Step 02

Season Chicken: While pasta cooks, pound chicken breasts to even thickness. Season both sides with salt and pepper.

Step 03

Sear Chicken: Heat olive oil in large nonstick skillet over medium-high heat. Add chicken breasts and cook 5-6 minutes per side until golden and cooked through. Remove to plate, cover loosely, and let rest.

Step 04

Sauté Mushrooms and Vegetables: In same skillet, reduce heat to medium. Add mushrooms and onion; sauté 4-5 minutes until softened and golden. Add garlic and thyme, cook for 1 minute.

Step 05

Create Roux: Sprinkle flour over vegetables and stir well. Cook for 1 minute.

Step 06

Build Sauce: Gradually whisk in chicken broth, followed by milk, stirring to avoid lumps. Bring to gentle simmer and cook 2-3 minutes until slightly thickened.

Step 07

Finish Sauce: Add Parmesan cheese and Dijon mustard; stir until smooth. Season with salt and pepper. Add spinach if using and stir until wilted.

Step 08

Combine Components: Slice chicken into strips. Add cooked spaghettini and chicken to sauce; toss gently to coat. Add splash of reserved pasta water if needed for desired sauce consistency.

Step 09

Serve: Plate immediately and garnish with fresh parsley and extra Parmesan if desired.

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Tools Needed

  • Large pot
  • Large nonstick skillet
  • Wooden spoon
  • Whisk
  • Knife and cutting board

Allergy Alerts

Review every ingredient to spot possible allergens. Consult your doctor if unsure.
  • Contains wheat from pasta and flour
  • Contains milk from low-fat milk and Parmesan cheese
  • Contains mustard from Dijon mustard
  • May contain eggs in some pasta products
  • May contain soy in broth; check ingredient labels

Nutrition Info (per portion)

Nutritional details are for reference and don't substitute medical advice.
  • Energy (Calories): 400
  • Lipids: 8 g
  • Carbohydrates: 51 g
  • Proteins: 31 g

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