Step 1: Sauté the Vegetables

1. Heat Olive Oil: In a large pot, heat the olive oil over medium heat.
2. Cook Onions and Garlic: Add the chopped onion and sauté for 3–4 minutes until translucent. Add the minced garlic and cook for 1 minute until fragrant.

Step 2: Add Remaining Vegetables

1. Add Carrots and Celery: Stir in the sliced carrots and celery, cooking for another 3–4 minutes until they begin to soften.

Step 3: Add Broth and Seasonings

1. Pour in Broth: Add the vegetable or chicken broth, diced tomatoes with their juices, dried basil, dried oregano, salt, and pepper. Bring to a boil.
2. Simmer: Reduce heat and let the soup simmer for about 10 minutes to allow the flavors to blend.

Step 4: Cook the Tortellini

1. Add Tortellini: Stir in the tortellini and cook according to package instructions, usually 3–5 minutes, until tender and floating.
2. Add Spinach: During the last minute of cooking, add the fresh spinach or kale and stir until wilted.

Step 5: Serve

1. Season to Taste: Taste and adjust seasoning with more salt and pepper if needed.
2. Garnish: Ladle into bowls and top with grated Parmesan cheese and fresh parsley if desired.
3. Enjoy: Serve warm with crusty bread or a side salad.