Creamy Marry Me Ditalini Sausage Pasta

Ingredients

• 12 oz ditalini pasta
• 2 tablespoons olive oil
• 1 lb Italian sausage, casings removed
• 1 small onion, finely chopped
• 3 cloves garlic, minced
• 1 cup heavy cream
• 1 cup chicken broth
• 1 can (14.5 oz) diced tomatoes, drained
• 1/2 cup grated Parmesan cheese
• 1 tablespoon tomato paste
• 1 teaspoon dried oregano
• 1/2 teaspoon red pepper flakes
• Salt
• pepper
• Fresh basil leaves, for garnish
• Additional Parmesan cheese, for serving