Creating Chicken Pesto Tortellini Soup is straightforward if you follow these simple steps:

1. Sauté Chicken: In a large pot, heat the olive oil over medium heat. Add the diced chicken and cook until browned, about 5-7 minutes.
2. Add Onion and Garlic: Stir in the chopped onion and minced garlic. Sauté until the onion is translucent, about 3-4 minutes.
3. Pour in Broth: Add the chicken broth to the pot and bring to a boil.
4. Mix in Cream and Pesto: Once boiling, reduce the heat to low. Stir in the heavy cream and basil pesto until well combined.
5. Add Tortellini: Gently add the cheese tortellini to the pot. Cook according to package instructions, usually around 3-5 minutes.
6. Incorporate Spinach: If using, add the baby spinach and cook until wilted, about 1-2 minutes.
7. Season: Taste the soup and season with salt and pepper as desired.
8. Serve: Ladle the soup into bowls and top with grated Parmesan cheese.

These steps will guide you in creating this incredible soup effortlessly, allowing you to enjoy a comforting meal in no time!