Creating Mushroom Chicken can be straightforward if you follow these easy steps:

1. Prepare Ingredients: Gather all ingredients and chop where necessary.
2. Heat Oil: In a large skillet, heat olive oil over medium-high heat.
3. Cook Chicken: Add the chicken breasts to the skillet, seasoning with salt and pepper. Cook for 6-7 minutes on each side until golden brown and cooked through. Remove from the pan and set aside.
4. Sauté Vegetables: In the same skillet, add diced onions and cook for 3-4 minutes, or until they become translucent. Add the minced garlic and sauté for another minute.
5. Add Mushrooms: Stir in the sliced mushrooms and sauté until they are softened and browned, about 5-6 minutes.
6. Pour in Broth: Slowly add the chicken broth to the skillet, scraping up any browned bits from the bottom of the pan. Allow it to simmer for 2-3 minutes.
7. Incorporate Cream: Lower the heat and stir in the heavy cream and dried thyme. Let the sauce simmer for about 5 minutes until it thickens slightly.
8. Combine with Chicken: Return the cooked chicken breasts to the skillet, coating them with the creamy mushroom sauce. Allow them to heat through for another 2-3 minutes.
9. Adjust Seasoning: Taste the sauce and adjust seasoning if needed, adding more salt or pepper to your preference.
10. Serve: Sprinkle fresh parsley over the top before serving.

Following these steps will guide you to create an incredible Mushroom Chicken dish that tastes just like a restaurant-quality meal.