Creating delicious Italian Penicillin Soup is straightforward when you follow these steps:

1. Heat Oil: In a large pot, heat olive oil over medium heat.
2. Sauté Vegetables: Add the chopped onion and cook until translucent. Stir in the minced garlic, carrots, celery, and bell pepper. Sauté for about 5-7 minutes until softened.
3. Pour in Broth: Add the vegetable or chicken broth and stir to combine.
4. Add Tomatoes and Herbs: Pour in the diced tomatoes, dried herbs, and bay leaf. Bring the mixture to a gentle boil.
5. Cook Pasta: Add the pasta to the pot. Reduce heat and let it simmer for about 10-12 minutes or until the pasta is al dente.
6. Season: Taste the soup and season with salt and pepper as needed. Remove the bay leaf before serving.
7. Garnish: Serve the soup hot, garnishing each bowl with fresh parsley or basil, and a sprinkle of grated Parmesan cheese if desired.

Following these simple steps will lead you to create a bowl of Italian Penicillin Soup that is nourishing and delightful.