Begin by heating a tablespoon of olive oil in a large skillet over medium-high heat. Once hot, add sliced fresh mushrooms and sauté for about 5-7 minutes until golden brown and tender.

Once browned, reduce heat to medium, and add freshly minced garlic. Sauté for an additional 1-2 minutes until fragrant and lightly golden.

Pour in 1 cup of heavy cream, stir gently to combine, and let simmer for about 3-4 minutes over medium heat until slightly thickened.

Stir in ½ cup of finely grated Parmesan cheese and continue stirring until melted and well blended. Adjust seasoning with salt and pepper.

Remove from heat and transfer to a serving dish. Garnish with chopped fresh parsley and a pinch of red pepper flakes if desired.