Mushroom Alfredo Pasta - Serving Dumplings

Ingredients

• 14 ounces rigatoni
• 14 ounces mushrooms (chopped)
• 1 tbsp olive oil
• 1 tsp salt
• 1 tsp black pepper
• 1 tsp dried thyme
• 1 tsp dried onion
• 1 tbsp balsamic vinegar
• 4 garlic cloves (minced)
• 1 ½ cup heavy cream
• ½ cup grated Parmesan
• 2 tbsp unsalted butter
• 1 tbsp chopped parsley (more for serving)