Creamy Tomato Tortellini

Name: Creamy Tomato Tortellini
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Cuisine: European, Italian, Mediterranean
Ingredients: 15 ml butter; 1/2 medium onion; 4 garlic cloves; 15 ml Italian seasoning; 2 ml crushed red pepper flakes (optional); 45 ml all-purpose flour; 45 ml tomato paste; 750 ml vegetable or chicken broth; 800 g canned diced tomatoes; 420 g refrigerated cheese tortellini; 80 ml heavy cream; 55 g freshly grated Parmesan; 1 bunch fresh basil; Salt and pepper to taste