1️⃣ Season the chicken: Season chicken breasts with salt and pepper on both sides.

2️⃣ Cook the chicken: Heat olive oil in a large skillet over medium-high heat. Add the chicken breasts and sear for about 5-7 minutes per side, or until golden brown and cooked through. Remove the chicken from the skillet and set aside.

3️⃣ Sauté onions and garlic: In the same skillet, add the finely chopped onion and minced garlic. Sauté over medium heat until translucent and fragrant, about 2-3 minutes.

4️⃣ Cook the mushrooms: Add the sliced mushrooms to the skillet. Stir frequently and cook until the mushrooms release their moisture and become tender, about 5 minutes.

5️⃣ Deglaze the skillet: Pour in the chicken broth, scraping up any browned bits stuck to the skillet. This adds depth of flavor to the sauce.

6️⃣ Prepare the cream sauce: Stir in the heavy cream and bring the mixture to a gentle simmer. Allow the sauce to cook for 3-4 minutes, or until slightly thickened.

7️⃣ Combine chicken and sauce: Return the chicken breasts to the skillet. Spoon the creamy mushroom sauce over the chicken and simmer for another 5 minutes to meld the flavors.

8️⃣ Garnish and serve: Sprinkle with fresh parsley for a pop of color and serve immediately while warm.