Creamy Mushroom Chicken Spaghettini (Printable)

Tender chicken and spaghettini in a velvety mushroom cream sauce—comforting yet light.

# What You Need:

→ Pasta

01 - 10.5 oz whole wheat spaghettini (or regular spaghettini)

→ Chicken

02 - 2 medium boneless, skinless chicken breasts (about 12 oz total)
03 - 1/2 tsp salt
04 - 1/4 tsp black pepper
05 - 1 tbsp olive oil

→ Mushrooms & Vegetables

06 - 9 oz cremini or white mushrooms, sliced
07 - 2 cloves garlic, minced
08 - 1 small yellow onion, finely diced
09 - 1 tsp fresh thyme leaves (or 1/2 tsp dried)
10 - 1 cup baby spinach, roughly chopped (optional)

→ Sauce

11 - 2 tbsp all-purpose flour
12 - 1 cup low-sodium chicken broth
13 - 3/4 cup low-fat milk (1% or 2%)
14 - 1/4 cup grated Parmesan cheese
15 - 1/2 tsp Dijon mustard
16 - Salt and pepper to taste

→ Garnish

17 - 2 tbsp fresh parsley, chopped
18 - Extra grated Parmesan cheese (optional)

# How-To:

01 - Bring a large pot of salted water to a boil. Cook the spaghettini according to package instructions until al dente. Reserve ½ cup of pasta water, then drain and set aside.
02 - While the pasta cooks, pound the chicken breasts to an even thickness. Season both sides with salt and pepper.
03 - Heat olive oil in a large nonstick skillet over medium-high heat. Add chicken breasts and cook for 5–6 minutes per side, until golden and cooked through. Remove to a plate, cover loosely, and let rest.
04 - In the same skillet, reduce heat to medium. Add mushrooms and onion; sauté for 4–5 minutes until softened and golden. Add garlic and thyme, cook for 1 minute.
05 - Sprinkle flour over the vegetables; stir well and cook for 1 minute.
06 - Gradually whisk in the chicken broth, followed by the milk, stirring to avoid lumps. Bring to a gentle simmer; cook 2–3 minutes until slightly thickened.
07 - Add Parmesan cheese and Dijon mustard; stir until smooth. Season with salt and pepper. Add spinach now if using, stir until wilted.
08 - 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. Serve immediately, garnished with fresh parsley and extra Parmesan if desired.

# Expert Advice:

01 -
  • The sauce feels luxurious and rich but uses clever tricks to keep it lighter than traditional cream sauces
  • Everything cooks in one pan except the pasta so cleanup is surprisingly manageable
  • This is the kind of comfort food that actually reheats beautifully for lunch the next day
02 -
  • Reserving pasta water is not optional, that starchy liquid is what binds the sauce to the noodles perfectly
  • Do not skip the step of pounding the chicken, it makes such a difference in texture and cooking time
03 -
  • Let the chicken rest for at least 5 minutes before slicing so the juices redistribute throughout the meat
  • Grate your own Parmesan from a wedge instead of using pregrated cheese for better melting and flavor
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