Instructions:

1. Boil Broth: In a medium-sized pot, bring the chicken or vegetable broth to a boil.
2. Add Wontons: Carefully add the wontons to the boiling broth. If using frozen wontons, they will cook quickly. If using fresh wontons, follow the package instructions.
3. Add Vegetables: Add the sliced shiitake mushrooms to the pot and let them simmer with the wontons for about 2-3 minutes.
4. Season the Soup: Add soy sauce, sesame oil, grated ginger, minced garlic, salt, and pepper to the pot. Stir gently to combine the flavors.
5. Add Spinach: Add the baby spinach leaves to the soup and cook for an additional 1-2 minutes until they are just wilted.
6. Serve: Ladle the soup into bowls. Garnish with sliced green onions.
7. Enjoy: Your quick and easy 10-minute wonton soup is ready to be enjoyed!

Feel free to customize the recipe by adding other vegetables, such as bok choy or bean sprouts, and adjusting the seasoning to your taste. Enjoy your delicious homemade wonton soup!