Creamy Alfredo Pasta with Smoked Sausage and Parmesan

Ingredients

• 12 oz (340 g) short pasta, such as penne, rotini, or cellentani
• 1 tablespoon olive oil
• 14 oz (400 g) fully cooked smoked sausage, sliced into 1/4-inch rounds
• 3 tablespoons (42 g) unsalted butter
• 4 cloves garlic, minced
• 1 1/4 cups (300 ml) heavy cream
• 1/2 teaspoon Italian seasoning
• 1/4 teaspoon garlic powder
• 1/2 teaspoon black pepper, plus more for serving
• 1 1/4 cups (125 g) freshly grated Parmesan cheese, plus more for serving
• 1/2 cup (120 ml) reserved pasta water, as needed
• Salt, to taste
• 2 tablespoons chopped parsley, for serving