Creamy Mushroom Chicken Spaghettini

Featured in: Simple One-Pot Aromatic Meals

This elegant yet simple dish combines tender chicken breast and delicate spaghettini in a silky mushroom cream sauce that's surprisingly light. The key is building flavor with sautéed mushrooms, garlic, and thyme, then creating a smooth sauce with broth and low-fat milk thickened with just a touch of flour. Toss everything together with reserved pasta water for perfect consistency.

Updated on Tue, 20 Jan 2026 15:40:00 GMT
Creamy Mushroom Chicken Spaghettini with tender chicken and velvety sauce, garnished with fresh parsley. Save
Creamy Mushroom Chicken Spaghettini with tender chicken and velvety sauce, garnished with fresh parsley. | junipercrumb.com

There was this rainy Tuesday last fall when I needed something that felt like a hug but wouldn't leave me feeling heavy afterward. I had chicken, pasta, and a carton of mushrooms that needed using, so I started experimenting with a lighter cream sauce approach. The smell of thyme and garlic hitting that hot skillet changed my entire mood. Sometimes the best dinners happen when you work with what you have and trust the process.

My sister came over unexpectedly while I was testing this version and practically hovered over the stove the whole time. She kept sneaking bits of chicken and asking when it would be ready, which is usually her polite way of saying she is actually hungry. We ended up eating standing up in the kitchen because neither of us wanted to wait for a proper table setting.

Ingredients

  • 300 g whole wheat spaghettini: The nutty flavor of whole wheat holds up beautifully against the creamy sauce but regular works perfectly too
  • 2 medium boneless skinless chicken breasts: Pounding them to even thickness ensures they cook through before the outside gets tough
  • 250 g cremini mushrooms: These have more depth than white mushrooms and develop such a nice golden color in the pan
  • 1 small yellow onion: Finely diced so it melts into the sauce rather than staying in distinct pieces
  • 2 cloves garlic: Minced fresh because jarred garlic never quite gives you that aromatic punch you want here
  • 1 tsp fresh thyme leaves: Fresh thyme makes the dish feel more elegant but half a teaspoon of dried works in a pinch
  • 2 tbsp all-purpose flour: This is what thickens the sauce without needing heavy cream
  • 1 cup low-sodium chicken broth: Using low-sodium lets you control the seasoning better
  • 3/4 cup low-fat milk: The sauce feels indulgent but keeps things lighter
  • 1/4 cup grated Parmesan cheese: Adds that salty umami depth that makes the sauce taste restaurant quality
  • 1/2 tsp Dijon mustard: This is the secret ingredient that rounds out all the flavors
  • 2 tbsp fresh parsley: Adds a fresh pop of color and brightness against the creamy sauce

Instructions

Product image
Rinse produce, fill pots, and clean cookware easily with flexible spray options for everyday cooking tasks.
Check price on Amazon
Get your pasta going first:
Bring a large pot of salted water to boil and cook the spaghettini until al dente then reserve half a cup of that starchy pasta water before draining
Prep your chicken properly:
Pound those breasts to an even thickness and season both sides with salt and pepper so every bite is flavorful
Sear the chicken perfectly:
Heat olive oil in a large nonstick skillet over medium-high heat and cook chicken for five to six minutes per side until golden and cooked through then let it rest on a plate
Build your flavor base:
In the same skillet reduce heat to medium and sauté mushrooms and onion for four to five minutes until softened and golden then add garlic and thyme for one minute more
Create the sauce base:
Sprinkle flour over the vegetables stirring well and cooking for one minute to lose that raw flour taste
Add your liquids gradually:
Whisk in the chicken broth followed by the milk stirring constantly to prevent any lumps then bring to a gentle simmer and cook for two to three minutes until slightly thickened
Finish with depth:
Stir in Parmesan cheese and Dijon mustard until smooth then season with salt and pepper adding spinach now if using
Bring it all together:
Slice chicken into strips and add both the cooked spaghettini and chicken to the sauce tossing gently to coat and adding a splash of pasta water if needed
Serve it up:
Plate everything immediately topped with fresh parsley and extra Parmesan if you want to make it look extra special
Product image
Rinse produce, fill pots, and clean cookware easily with flexible spray options for everyday cooking tasks.
Check price on Amazon
Savory Creamy Mushroom Chicken Spaghettini twirled on a fork, served warm with Parmesan and mushrooms. Save
Savory Creamy Mushroom Chicken Spaghettini twirled on a fork, served warm with Parmesan and mushrooms. | junipercrumb.com

This recipe has become my go-to when friends say they are coming over and I want something that looks impressive but does not require restaurant level effort. Last month my neighbor asked for the recipe before she even finished her first helping which is always the best compliment.

Making It Your Own

Sometimes I swap in turkey breast or add extra mushrooms and white beans to make it vegetarian. The sauce base is so forgiving that it adapts beautifully to whatever you have on hand or need to accommodate.

Perfect Wine Pairings

A crisp Pinot Grigio cuts through the creaminess beautifully while Sauvignon Blanc adds a bright herbal note that plays nicely with the thyme. Honestly any dry white wine you enjoy drinking will work wonderfully here.

Make Ahead Wisdom

You can slice the chicken and chop all your vegetables in the morning which makes the actual cooking feel almost effortless. The sauce also reheats surprisingly well if you end up with leftovers.

  • Keep the pasta and sauce separate if storing for later
  • Add a splash of milk when reheating to loosen the sauce back up
  • Fresh parsley is best added right before serving
Product image
Protect hands when handling hot pans, baking sheets, and cookware while cooking or removing dishes from the oven.
Check price on Amazon
Close-up of Creamy Mushroom Chicken Spaghettini featuring sautéed mushrooms, sliced chicken, and a light cream sauce. Save
Close-up of Creamy Mushroom Chicken Spaghettini featuring sautéed mushrooms, sliced chicken, and a light cream sauce. | junipercrumb.com

Hope this brings you as many cozy kitchen moments as it has brought me. There is something deeply satisfying about a dish that feels special but does not require hours of your evening.

Your Questions Answered

Can I use regular pasta instead of whole wheat spaghettini?

Yes, regular spaghettini works perfectly. Both cook similarly and will absorb the cream sauce beautifully. If you prefer thicker pasta, try fettuccine or pappardelle.

How do I keep the sauce from becoming too thick?

Use the reserved pasta water to adjust consistency. Add it gradually while tossing, as the pasta will continue absorbing liquid. The sauce should coat the pasta elegantly without pooling at the bottom.

What's the best way to cook chicken evenly?

Pound the breasts to uniform thickness before cooking. This ensures they cook through in the same time without drying out. Medium-high heat for 5-6 minutes per side achieves a golden exterior while keeping the interior tender.

Can I make this vegetarian?

Absolutely. Omit the chicken and use vegetable broth instead of chicken broth. Add extra mushrooms, white beans, or chickpeas for protein and substance. Increase vegetables like spinach or peas.

How do I prevent lumps in the cream sauce?

Whisk the broth and milk together gradually. Start with a small amount to create a smooth paste with the flour before adding the rest of the liquid. Constant whisking while adding liquid prevents lumps from forming.

Can I prepare this ahead of time?

Cook components separately and refrigerate up to 2 days. Reheat the sauce gently on the stove, cook fresh pasta, and combine just before serving. This prevents the pasta from becoming mushy.

Creamy Mushroom Chicken Spaghettini

Tender chicken and thin spaghettini coated in a velvety, lighter mushroom cream sauce. Comforting, satisfying, and ready in 40 minutes.

Time to Prep
15 mins
Time to Cook
25 mins
Overall Time
40 mins
Created by Brooke Taylor


Skill Level Easy

Cuisine Italian-Inspired

Makes 4 Portions

Diet Info None specified

What You'll 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 0.5 teaspoon salt
03 0.25 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 0.5 teaspoon dried
05 1 cup baby spinach, roughly chopped (optional)

Sauce

01 2 tablespoons all-purpose flour
02 1 cup low-sodium chicken broth
03 0.75 cup low-fat milk (1% or 2%)
04 0.25 cup grated Parmesan cheese
05 0.5 teaspoon Dijon mustard
06 Salt and pepper to taste

Garnish

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

How To Make It

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 0.5 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

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

Step 06

Build 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 Warning

Double-check the ingredient list for allergens, and ask your doctor if you’re uncertain.
  • Contains wheat (pasta and flour)
  • Contains milk (milk and Parmesan)
  • Contains mustard
  • May contain eggs (in some pasta)
  • May contain soy (check broth label)

Nutrition Details (each serving)

Nutritional details are for informational purposes only, and not a substitute for medical guidance.
  • Total Calories: 400
  • Total Fat: 8 g
  • Carbohydrates: 51 g
  • Proteins: 31 g