Olive Garden Ravioli Carbonara

Name: Olive Garden Ravioli Carbonara
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: European, Italian, Mediterranean
Ingredients: 1 (18-ounce) bag refrigerated ravioli (cheese, spinach, etc.); 6-8 slices bacon; 1 medium onion, diced; 2-3 cloves garlic, minced; 2 tablespoons butter, if needed; 2 tablespoons all-purpose flour; 1 1/2 cups heavy cream, room temperature; 1/2 cup whole milk, room temperature; 1 1/4 cup freshly grated Parmesan cheese, divided; 1/4 teaspoon ground nutmeg; 1/2 cup shredded mozzarella cheese, optional; salt and freshly ground black pepper, to taste; fresh parsley, chopped for garnish