Creamy Mushroom Chicken Spaghettini

Featured in: Weeknight Dinners

This Italian-inspired dish combines pan-seared chicken breast with al dente spaghettini in a silky mushroom cream sauce. Cremini mushrooms, garlic, and thyme build deep flavor while low-fat milk keeps it lighter without sacrificing richness. A touch of Dijon mustard and Parmesan adds complexity. Optional spinach provides color and nutrition. Ready in just 40 minutes, it's elegant enough for dinner guests yet simple enough for weeknight cooking.

Updated on Tue, 20 Jan 2026 14:18:00 GMT
Golden-brown sliced chicken breast and al dente whole wheat spaghettini coated in a creamy mushroom Parmesan sauce, garnished with fresh parsley. Save
Golden-brown sliced chicken breast and al dente whole wheat spaghettini coated in a creamy mushroom Parmesan sauce, garnished with fresh parsley. | flashoven.com

I stumbled onto this combination during a Tuesday evening when the fridge held nothing but random bits and a serious case of the hungers. Something about the way that velvety sauce clung to each strand of pasta made my kitchen feel like a tiny Italian restaurant, minus the checkered tablecloth. Now it's the kind of dinner I crave when comfort food needs to feel special but not heavy.

Last winter my friend Sarah dropped by unexpectedly while I had this simmering on the stove. She stood in my doorway, took in that garlic and mushroom aroma, and immediately asked if there was enough for two. We ate standing at the counter, twirling pasta and talking until the dish was scraped clean.

Ingredients

  • 300 g whole wheat spaghettini: The skinny noodles catch sauce beautifully, and whole wheat adds nuttiness that stands up to the mushrooms
  • 2 boneless chicken breasts: Pounding them even ensures they cook through before developing that lovely golden crust
  • 250 g cremini mushrooms: Their earthy flavor deepens the sauce, and they hold their texture better than white buttons
  • 1 small yellow onion: Finely diced so it melts into the sauce foundation, providing sweetness without chunks
  • 2 cloves garlic: Minced fresh, never jarred, because that moment when it hits the hot pan is pure kitchen magic
  • 1 tsp fresh thyme: Woodsy and fragrant, this herb bridges the gap between chicken and mushrooms perfectly
  • 2 tbsp all-purpose flour: The secret to thickening without heaviness, creating that silky restaurant-style consistency
  • 1 cup low-sodium chicken broth: Building depth without oversalting, letting you control the seasoning at the end
  • 3/4 cup low-fat milk: Enough to create creaminess while keeping things lighter than traditional heavy cream versions
  • 1/4 cup grated Parmesan: Salty and nutty, this cheese pulls all the flavors together into something cohesive
  • 1/2 tsp Dijon mustard: My grandmother's trick for boosting cream sauce flavor without adding fat
  • Fresh parsley: Bright green and peppery, it cuts through the richness and makes everything look inviting

Instructions

Product image
Dispense soap hands-free for quick handwashing and easier cleanup while cooking and handling ingredients.
Check price on Amazon
Get your pasta water going first:
Bring a large pot of salted water to a boil and cook spaghettini until al dente, remembering to reserve that precious half cup of pasta water before draining
Prep your chicken properly:
Pound the breasts to even thickness so they cook uniformly, then season both sides generously with salt and pepper
Sear the chicken until golden:
Heat olive oil in a large nonstick skillet over medium-high heat and cook chicken for five to six minutes per side until it develops a beautiful crust and reaches doneness
Let chicken rest while you build flavor:
Move cooked chicken to a plate and cover loosely, then reduce skillet heat to medium and start sautéing those mushrooms and onions
Build your vegetable base:
Cook mushrooms and onion for four to five minutes until they turn golden and fragrant, then add garlic and thyme for one more minute
Create the roux foundation:
Sprinkle flour over the vegetables and stir constantly for one minute, cooking out that raw flour taste
Gradually add your liquids:
Whisk in chicken broth first, then milk, stirring constantly to prevent any lumps from forming
Simmer into silkiness:
Let the sauce bubble gently for two to three minutes until it thickens enough to coat the back of a spoon
Finish with flavor:
Stir in Parmesan and Dijon mustard until smooth, then season with salt and pepper, adding spinach now if you want those greens wilted in
Bring it all together:
Slice rested chicken into strips and return to the pan along with cooked pasta, tossing everything gently and adding pasta water only if needed
Product image
Dispense soap hands-free for quick handwashing and easier cleanup while cooking and handling ingredients.
Check price on Amazon
Creamy Mushroom Chicken Spaghettini plated on a white dish, featuring tender chicken strips and sautéed cremini mushrooms in a velvety, light cream sauce. Save
Creamy Mushroom Chicken Spaghettini plated on a white dish, featuring tender chicken strips and sautéed cremini mushrooms in a velvety, light cream sauce. | flashoven.com

This recipe transformed from a random Tuesday experiment into the dish my sister requests every time she visits. There's something about the way the sauce coats each strand that makes people slow down and really savor their food.

Making It Your Own

Sometimes I swap turkey breast for chicken or add white beans to make it vegetarian with extra protein. The sauce is versatile enough that these changes never feel like compromises, just variations on a theme.

Getting The Sauce Just Right

The most common mistake is rushing the flour step. Take that full minute to cook the flour with the vegetables, stirring constantly so nothing burns. This simple step prevents that raw flour taste that can ruin an otherwise perfect sauce.

Perfect Pairings

A crisp white wine like Pinot Grigio cuts through the creaminess beautifully while a simple arugula salad with lemon vinaigrette provides the perfect fresh contrast. Keep the sides light since this pasta is satisfying on its own.

  • Toast extra Parmesan on top for a crispy garnish that adds texture
  • Double the mushrooms if you want extra earthy depth without much effort
  • Let each person add their own red pepper flakes at the table for heat
Product image
Soft, absorbent towels keep counters dry while cooking, wiping spills, and handling dishes during everyday recipe prep.
Check price on Amazon
A close-up view of Creamy Mushroom Chicken Spaghettini showcasing the rich, silky mushroom sauce clinging to the skinny pasta and juicy chicken slices. Save
A close-up view of Creamy Mushroom Chicken Spaghettini showcasing the rich, silky mushroom sauce clinging to the skinny pasta and juicy chicken slices. | flashoven.com

There's something deeply satisfying about a recipe that comes together this easily while tasting like it came from a restaurant kitchen. Those are the kinds of dinners that become part of your regular rotation.

Recipe Questions & Answers

Can I use chicken thighs instead of breast?

Yes, thighs work well and stay tender. Increase cooking time to 7–8 minutes per side. Thighs have more fat, so the sauce will be slightly richer.

How do I prevent the sauce from becoming lumpy?

Whisk the flour into the mushroom mixture for one minute before adding liquid. Add broth and milk gradually while whisking constantly. This creates a smooth roux base.

What's the best pasta water ratio for consistency?

Reserve ½ cup pasta water before draining. Add it gradually while tossing the finished dish. Starchy pasta water helps the sauce cling to noodles beautifully.

Can I make this ahead and reheat?

Yes, refrigerate up to 3 days. Reheat gently over medium heat, adding a splash of milk or broth to loosen the sauce. Avoid high heat to prevent curdling.

What wine pairs well with this dish?

A crisp Pinot Grigio or Sauvignon Blanc complements the earthy mushrooms and creamy sauce beautifully. The acidity cuts through richness and cleanses the palate.

How can I make this vegetarian?

Omit chicken and add extra mushrooms or a can of white beans for protein. Use vegetable broth instead of chicken broth. The earthy flavors remain just as satisfying.

Creamy Mushroom Chicken Spaghettini

Tender chicken and skinny spaghettini tossed in a velvety mushroom cream sauce. Comforting and light.

Prep Time
15 min
Baking/Cooking Time
25 min
Time Required
40 min
Recipe by Harper Ward

Recipe Type Weeknight Dinners

Skill Level Easy

Cuisine Italian-Inspired

Makes 4 Number of Servings

Diet Considerations 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 1/2 teaspoon salt
03 1/4 teaspoon black pepper
04 1 tablespoon olive oil

Mushrooms and 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
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)

How-To Steps

Step 01

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

Step 02

Season Chicken: Pound chicken breasts to an even thickness. Season both sides generously with salt and pepper.

Step 03

Cook Chicken: Heat olive oil in a large nonstick skillet over medium-high heat. Add chicken breasts and cook 5 to 6 minutes per side until golden and cooked through. Transfer 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 4 to 5 minutes until softened and golden. Add garlic and thyme, cook 1 minute.

Step 05

Create Roux Base: Sprinkle flour over the vegetables and stir well. Cook 1 minute to remove raw flour taste.

Step 06

Build Cream Sauce: Gradually whisk in chicken broth followed by milk, stirring constantly to avoid lumps. Bring to a gentle simmer and cook 2 to 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 the sauce; toss gently to coat. Add reserved pasta water as needed to achieve desired consistency.

Step 09

Serve: Divide among serving bowls and garnish with fresh parsley and additional Parmesan cheese if desired. Serve immediately.

Essential Tools

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

Allergy Details

Always verify every ingredient for allergens. Talk to a healthcare provider if you're unsure.
  • Contains wheat from pasta and flour
  • Contains milk from milk and Parmesan cheese
  • Contains mustard
  • May contain eggs from pasta
  • May contain soy from broth; always verify ingredient labels

Nutrition per Serving

Details shown are for general reference. Don’t use as a substitute for medical advice.
  • Calories: 400
  • Fats: 8 g
  • Carbohydrates: 51 g
  • Proteins: 31 g