There are certain dinners I make when I want something that feels a little fancy but absolutely don’t want a complicated recipe. This chicken and mushroom skillet is one of my favorites for exactly that reason.

I usually start with boneless chicken breasts, give them a good sear until they’re golden brown, then use the same skillet to make the sauce. The mushrooms soak up all those delicious browned bits left behind by the chicken, and then everything gets finished with cream, Asiago cheese, and a little mustard.

Honestly, that sauce is the part that keeps me coming back. It’s creamy without being bland, the Asiago gives it a nutty, savory flavor, and the mustard adds just enough tang to keep the whole dish from feeling too heavy.

Best of all, everything cooks in one skillet, so cleanup is pretty painless.

Ingredients

For the Chicken

4 boneless, skinless chicken breasts, about 6 ounces each
1 teaspoon salt
½ teaspoon black pepper
1 teaspoon Italian seasoning
½ teaspoon garlic powder
2 tablespoons olive oil
1 tablespoon butter

For the Mushroom Sauce

8 ounces cremini or button mushrooms, sliced
1 small yellow onion, finely diced
3 cloves garlic, minced
½ cup chicken broth
1 cup heavy cream
¾ cup freshly grated Asiago cheese
1½ tablespoons Dijon mustard
½ teaspoon Italian seasoning
¼ teaspoon black pepper
Salt, to taste
2 tablespoons fresh parsley, chopped

Optional

½ teaspoon red pepper flakes for a little heat
1 teaspoon fresh lemon juice to brighten the sauce
Extra grated Asiago for serving

How to Make Creamy Chicken and Mushroom Skillet

1. Prepare the Chicken

If your chicken breasts are very thick, carefully slice them horizontally or pound them to an even thickness.

Pat them dry with paper towels. Season both sides with salt, black pepper, Italian seasoning, and garlic powder.

I usually take a couple of extra minutes here to make sure the chicken is evenly seasoned. It makes a noticeable difference in the finished dish.

2. Sear the Chicken

Heat the olive oil and butter in a large skillet over medium-high heat.

Once the pan is hot, add the chicken.

Cook for approximately 4–6 minutes per side, depending on thickness, until deeply golden brown and cooked through.

Transfer the chicken to a plate and loosely cover it with foil.

Don’t wipe out the skillet! Those browned bits stuck to the bottom are basically free flavor for your sauce.

3. Cook the Mushrooms

Add the sliced mushrooms to the same skillet.

Cook for about 5–7 minutes, stirring occasionally, until they release their moisture and develop golden-brown edges.

If the pan looks dry, add another small splash of olive oil or a little butter.

I prefer letting the mushrooms get genuinely brown rather than simply soft. That extra browning gives the sauce a much deeper flavor.

4. Add the Onion and Garlic

Add the diced onion and cook for 2–3 minutes, until softened.

Stir in the minced garlic and cook for another 30–60 seconds, just until fragrant.

Be careful not to let the garlic burn.

5. Deglaze the Skillet

Pour in the chicken broth and use a wooden spoon or spatula to scrape up the browned bits from the bottom of the skillet.

Let it simmer for 1–2 minutes.

This is one of my favorite parts of making a skillet dinner—the pan practically turns those little crispy bits into the foundation of the sauce.

6. Make the Creamy Sauce

Reduce the heat to medium-low.

Pour in the heavy cream and stir in the Dijon mustard and Italian seasoning.

Let the sauce gently simmer for about 3–5 minutes, stirring occasionally.

Don’t let it boil aggressively. A gentle simmer keeps the cream sauce smooth.

7. Add the Asiago

Gradually sprinkle in the grated Asiago cheese, stirring continuously until it’s melted and incorporated into the sauce.

Add black pepper and taste for salt.

If you like a little brightness, stir in a teaspoon of fresh lemon juice. Honestly, it’s optional, but I find it balances the richness beautifully.

8. Return the Chicken

Place the seared chicken breasts back into the skillet.

Spoon the creamy mushroom sauce over the chicken and let everything simmer together for 2–3 minutes.

This gives the chicken time to soak up some of that delicious sauce.

The chicken should reach 165°F (74°C) in the thickest part.

9. Garnish and Serve

Turn off the heat and sprinkle generously with fresh parsley.

For an extra cheesy finish, add a little more freshly grated Asiago on top.

Serve immediately while the sauce is warm and silky.

Cooking Tips for the Best Chicken and Mushroom Skillet

Don’t skip the sear

A golden-brown crust on the chicken adds so much flavor. Make sure the skillet is hot before adding the chicken.

Don’t overcrowd the pan

If your skillet is too small, cook the chicken in batches. Crowding traps moisture and makes it harder to get that beautiful brown crust.

Brown the mushrooms properly

Give the mushrooms time to cook off their water and caramelize. Pale mushrooms won’t give you the same depth of flavor.

Grate the Asiago yourself

Freshly grated cheese generally melts more smoothly than pre-shredded cheese. It also gives the sauce a much better texture.

Keep the sauce at a gentle simmer

High heat can cause a cream-based sauce to separate or become too thick.

Adjust the consistency

If your sauce gets thicker than you like, stir in a splash of chicken broth. If it’s too thin, let it simmer gently for another minute or two.

Don’t overcook the chicken

Chicken breasts can go from juicy to dry surprisingly quickly. An instant-read thermometer makes it much easier to know when they’re done.

What to Serve with Creamy Chicken and Mushroom Sauce

This sauce is too good to leave sitting in the skillet, so I usually serve this chicken with something that can soak it up.

Great options include:

🥔 Creamy mashed potatoes
🍝 Fettuccine or spaghetti
🍚 Steamed white or brown rice
🥖 Crusty French bread
🥦 Roasted broccoli
🥬 Sautéed green beans
🥗 Simple green salad
🥔 Roasted baby potatoes

For a lighter dinner, serve the chicken alongside steamed vegetables and a fresh salad.

Approximate Nutrition Information

Per serving, assuming 4 servings:

Calories: 570
Protein: 51 g
Carbohydrates: 9 g
Fat: 36 g
Saturated Fat: 19 g
Fiber: 1 g
Sugar: 4 g
Sodium: 850 mg

Nutrition is an estimate and will vary depending on the specific ingredients and brands used.

Frequently Asked Questions

1. Can I use chicken thighs instead of chicken breasts?

Absolutely. Boneless, skinless chicken thighs work beautifully in this recipe and are naturally more forgiving if cooked a little longer. Just make sure the chicken reaches 165°F (74°C) internally.

2. What can I use instead of Asiago cheese?

Parmesan or Pecorino Romano are good substitutes. Parmesan will give you a similar nutty, savory flavor, while Pecorino will make the sauce a little sharper and saltier.

3. Can I use milk instead of heavy cream?

You can, but the sauce won’t be nearly as rich or thick. If using milk, you may need a small amount of flour or cornstarch to help thicken the sauce.

4. Can I make this chicken skillet ahead of time?

Yes. Store the chicken and sauce in an airtight container in the refrigerator for up to 3–4 days. Reheat gently over low to medium-low heat with a splash of chicken broth or cream to loosen the sauce.

5. Why did my creamy sauce become grainy?

This usually happens when cheese is added over very high heat or the sauce is allowed to boil hard. Keep the heat low when adding Asiago and stir it in gradually for the smoothest result.

Conclusion

This Chicken and Mushroom Skillet in a Creamy Asiago and Mustard Sauce has become one of those recipes I can make almost on autopilot. The chicken gets beautifully golden, the mushrooms become rich and savory, and that creamy Asiago-mustard sauce brings everything together.

I usually serve it over mashed potatoes or pasta with some crusty bread on the side. And honestly, don’t be surprised if everyone at the table starts scraping the skillet for the last bit of sauce.