Over medium-high heat, melt the butter in a large skillet.
Add the onion and cook until fragrant and translucent , about 3 minutes.
Add the mushrooms and cook until tender, about 5 minutes.
Add the garlic, seasoned salt and pepper and cook for one additional minute or until the garlic is fragrant.
Pour in the white wine and broth. Bring to a boil and cook until the liquid has reduced to half.
Remove from heat and slowly add the heavy cream and parmesan cheese and stir until completely melted.
Calories: 265kcal | Carbohydrates: 9g | Protein: 8g | Fat: 21g | Saturated Fat: 13g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 6g | Trans Fat: 1g | Cholesterol: 67mg | Sodium: 608mg | Potassium: 334mg | Fiber: 1g | Sugar: 3g | Vitamin A: 723IU | Vitamin C: 7mg | Calcium: 180mg | Iron: 1mg