In a large pot, heat the olive oil over medium heat.
Add the chopped onion, diced carrots, and diced celery. Sauté for about 5-7 minutes, until the vegetables are softened.
Stir in the minced garlic and cook for an additional 1 minute, until fragrant.
Pour in the vegetable broth, add the bay leaf, and dried thyme; bring the mixture to a boil.
Once boiling, add the pastina and reduce the heat to a gentle simmer. Cook according to the package instructions (usually around 5-6 minutes) until the pasta is tender.
Stir in the fresh spinach and cook for another 1-2 minutes until it wilts.
Remove the bay leaf, and adjust seasoning with salt and pepper to taste.
If desired, stir in the Parmesan cheese until melted and well combined.
Serve hot, garnished with chopped parsley and an extra sprinkle of Parmesan cheese on top, if using.
Notes
Add more vegetables or protein for a heartier meal.