Creamy Mushroom Chicken Spaghettini

Featured in: Everyday Home Meals

Tender boneless chicken breasts are seared until golden, then sliced and tossed with al dente spaghettini in a silky mushroom cream sauce. The sauce combines sautéed cremini mushrooms, garlic, and thyme with a light roux and low-fat milk base, finished with Parmesan and Dijon mustard for depth. Fresh spinach wilts into the sauce, while reserved pasta water adjusts consistency. Garnished with fresh parsley and extra cheese, this Italian-inspired dish balances indulgence with lighter cooking techniques, delivering restaurant-quality comfort in under 45 minutes.

Updated on Tue, 20 Jan 2026 12:56:00 GMT
Golden-brown chicken strips and al dente spaghettini nestled in a creamy mushroom sauce, garnished with fresh parsley and Parmesan. Save
Golden-brown chicken strips and al dente spaghettini nestled in a creamy mushroom sauce, garnished with fresh parsley and Parmesan. | spoonatlas.com

The smell of mushrooms hitting a hot skillet still takes me back to my tiny first apartment kitchen, where I learned that comfort food doesn't have to be heavy. This creamy mushroom chicken spaghettini became my weeknight savior during those long work days when something nourishing but not overly filling was exactly what I needed. The sauce comes together so quickly that I've made it countless times even when I'm barely awake enough to chop vegetables.

My friend Sarah stayed over during a particularly rough week and I whipped this up without even thinking. She asked for seconds and then sat at my counter helping me finish the wine while telling me this was exactly the kind of meal that makes you believe everything will be okay. Now whenever I make it I think of her laughing at my terrible jokes between bites.

Ingredients

  • 300 g whole wheat spaghettini: The nutty flavor stands up beautifully to the creamy mushroom sauce and adds fiber without feeling like health food
  • 2 medium boneless skinless chicken breasts: Pounding them to even thickness ensures they cook through quickly and stay tender
  • 250 g cremini or white mushrooms: These develop the best golden color and meaty texture when given time to properly brown in the pan
  • 2 cloves garlic and 1 small yellow onion: The aromatic foundation that makes your kitchen smell incredible
  • 1 tsp fresh thyme leaves: Earthy and warm this herb bridges the gap between the chicken and mushrooms perfectly
  • 2 tbsp all-purpose flour: Just enough to thicken the sauce into that velvety consistency without making it taste like gravy
  • 1 cup low-sodium chicken broth: Builds depth of flavor while keeping the salt levels in check
  • 3/4 cup low-fat milk: Creates creaminess without the heaviness of heavy cream
  • 1/4 cup grated Parmesan cheese: Adds salty umami that makes the sauce taste much richer than it actually is
  • 1/2 tsp Dijon mustard: The secret ingredient that cuts through the richness and makes all the flavors pop

Instructions

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Get your pasta water going first:
Bring a large pot of salted water to a boil and cook the spaghettini according to package directions until al dente then reserve ½ cup of that starchy pasta water before draining
Season and cook the chicken:
Pound those chicken breasts to an even thickness then season both sides with salt and pepper before cooking in olive oil over medium-high heat for 5 to 6 minutes per side until golden and cooked through
Sauté your mushrooms and onions:
Reduce the heat to medium and add the mushrooms and onion to the same skillet letting them cook for 4 to 5 minutes until they're softened and beautifully golden brown
Add the aromatics and thicken:
Stir in the garlic and thyme for just one minute then sprinkle the flour over the vegetables stirring constantly to cook away that raw flour taste
Build your creamy sauce:
Gradually whisk in the chicken broth followed by the milk and bring everything to a gentle simmer letting it cook for 2 to 3 minutes until slightly thickened
Finish with flavor:
Stir in the Parmesan cheese and Dijon mustard until smooth then season with salt and pepper adding spinach now if you want those greens to wilt right into the sauce
Bring it all together:
Slice your rested chicken into strips then toss everything the spaghettini the chicken and all that sauce together adding a splash of pasta water if you need to loosen it up
Serve it up:
Plate immediately topped with fresh parsley and extra Parmesan because that first bite while it's still steaming hot is absolute perfection
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Savory Creamy Mushroom Chicken Spaghettini served in a shallow bowl, featuring tender chicken and mushrooms in a light, velvety cream sauce. Save
Savory Creamy Mushroom Chicken Spaghettini served in a shallow bowl, featuring tender chicken and mushrooms in a light, velvety cream sauce. | spoonatlas.com

This recipe has seen me through sick days celebrations and too many Tuesday nights to count. It's the kind of meal that makes people feel taken care of without requiring you to spend hours in the kitchen.

Making It Your Own

Once you master the basic technique you'll start seeing opportunities to switch things up based on what's in your fridge or what you're craving. The sauce method stays reliable even when the ingredients change.

Wine Pairing Magic

A crisp Pinot Grigio or Sauvignon Blanc cuts through the creaminess while complementing the earthy mushrooms. I love having a glass while I cook and another with dinner the same bottle works for both.

Get Ahead Like A Pro

You can slice your mushrooms and chop the onions and garlic in the morning or even the night before. The sauce actually reheats beautifully so making extra for tomorrow's lunch is never a bad idea.

  • Keep some frozen chicken breasts in the freezer and you're always 30 minutes away from this meal
  • If you want it vegetarian simply add extra mushrooms or a can of white beans instead of chicken
  • The sauce thickens as it stands so splash in a little more milk or pasta water when reheating leftovers
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A close-up view of Creamy Mushroom Chicken Spaghettini, highlighting the silky sauce coating the pasta and the sautéed mushrooms' texture. Save
A close-up view of Creamy Mushroom Chicken Spaghettini, highlighting the silky sauce coating the pasta and the sautéed mushrooms' texture. | spoonatlas.com

Some recipes are just keepers and this one has earned its permanent spot in my rotation through countless delicious dinners.

Recipe FAQs

Can I use regular pasta instead of spaghettini?

Absolutely. While spaghettini's thin strands coat beautifully with the cream sauce, you can substitute with fettuccine, pappardelle, or any pasta shape you prefer. Adjust cooking time according to package directions.

How do I prevent the sauce from becoming too thick?

The reserved pasta water is key. Add it gradually while stirring to reach your desired consistency. Start with 2 tablespoons and add more as needed. The starch in pasta water emulsifies the sauce naturally.

What mushrooms work best for this dish?

Cremini and white button mushrooms are ideal, offering mild earthiness and good texture. Portobello mushrooms add deeper flavor but require adjustment for size. Avoid dried mushrooms unless rehydrated, as they concentrate differently.

Can I make this ahead and reheat it?

Store the sauce and chicken separately from pasta for up to 3 days. Reheat gently over medium heat with a splash of milk or broth to restore sauce consistency. Combine with freshly cooked or reheated pasta when serving.

How do I make this completely vegetarian?

Omit the chicken and double the mushroom quantity or add a 15-ounce can of cannellini beans for protein. Use vegetable broth instead of chicken broth, and the cooking method remains identical.

Why is the chicken pounded before cooking?

Pounding to even thickness ensures uniform cooking throughout the breast. This prevents dry exterior edges while the thicker center finishes cooking, resulting in consistently tender, juicy meat.

Creamy Mushroom Chicken Spaghettini

Tender chicken breast with spaghettini in a creamy, lighter mushroom sauce. Satisfying yet light comfort food.

Prep Time
15 min
Cook Time
25 min
Time Needed
40 min
Recipe By Paisley Ward


Skill Level Easy

Cuisine Italian-Inspired

Makes 4 Portions

Dietary Info None specified

What You Need

Pasta

01 10.5 oz whole wheat spaghettini or regular spaghettini

Chicken

01 2 medium boneless, skinless chicken breasts (about 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

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

Step 02

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

Step 03

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

Step 04

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

Step 05

Make the roux: Sprinkle flour over the vegetables; stir well and cook for 1 minute.

Step 06

Create the cream sauce: Gradually whisk in the chicken broth, followed by the milk, stirring to avoid lumps. Bring to a gentle simmer; cook 2 to 3 minutes until slightly thickened.

Step 07

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

Step 08

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

Step 09

Serve: Serve immediately, garnished with fresh parsley and extra Parmesan if desired.

Tools Needed

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

Allergy Details

Double-check every ingredient if you have food allergies. If unsure, contact a healthcare expert.
  • Contains wheat from pasta and flour
  • Contains milk from milk and Parmesan cheese
  • Contains mustard from Dijon mustard
  • May contain eggs in some pasta
  • May contain soy in chicken broth

Nutrition (each serving)

Nutritional data is for reference and shouldn't replace professional medical consultation.
  • Calorie Count: 400
  • Fat Content: 8 g
  • Carbohydrates: 51 g
  • Proteins: 31 g