1 1/2pounds spinach, trimmed of thick stems and chopped, or 1 10-ounce bag frozen spinach
1/2cup grated Parmesan cheese (optional)
Instructions
Put the oil in a large pot over medium-high heat. Add the onion and garlic, sprinkle with salt and pepper, and cook, stirring frequently, until they soften and become translucent, 2 to 3 minutes. Stir in a pinch of chile flakes if you’d like.
Add the tomato purée, beans, and stock. Bring the mixture to a boil, then add the spinach and bring to a boil again. Lower the heat so the soup bubbles gently but steadily. Cook, stirring frequently, until the spinach softens and the soup thickens, 3 to 5 minutes. Taste, adjust the seasoning, and serve, sprinkled with some cheese if you’d like.