A warm bowl of minestrone packed with vegetables and white beans — the Italian grandmother approach to a low calorie Wednesday dinner that nourishes the soul.
Heat the olive oil in a large soup pot over medium heat. Add diced onion and sauté for 3 minutes, until translucent.
Stir in chopped celery, carrot, and zucchini. Sauté for 5 more minutes, adjusting heat if needed to avoid browning.
Add minced garlic and cook for 1 minute, stirring constantly to prevent burning.
Pour in the vegetable broth and diced tomatoes; bring to a gentle simmer over medium-high heat.
Add white beans, dried oregano, dried basil, salt, and pepper. Reduce heat to low, cover, and simmer for 15 minutes.
Stir in baby spinach, letting it wilt for 2–3 minutes with the lid off. Taste for seasoning and serve hot.