How to Make It
Warm oil in a large pot over medium heat. Sauté garlic, stirring frequently, until fragrant, about 30 seconds. Stir in broth and tomato sauce.
Raise heat to medium-high and bring to a boil. Add tortellini, spinach and crushed red pepper. Reduce heat to medium and cook, stirring occasionally, until tortellini is tender, about 8 minutes or as package label directs. Season with salt and pepper. Divide soup among 4 bowls and sprinkle each with 1 Tbsp. grated Parmesan. Serve immediately.