Creamy Red Pepper Shells

Ingredients

• ounces medium pasta shells
• jar roasted red bell peppers
• chicken stock
• tablespoon olive oil
• ounces mild Italian sausage
• medium sweet onion
• garlic
• teaspoons Italian seasoning
• tablespoons all-purpose flour
• can tomato sauce
• heavy cream
• Kosher salt and freshly ground black pepper
• freshly grated Parmesan
• tablespoons chopped fresh basil leaves