Tomato, zucchini, white bean and basil soup

olive oil

small onion, chopped

garlic, chopped

tomatoes, seeded and chopped

medium zucchini, chopped

sprigs thyme leaves

vegetable stock or water

cannellini (white) beans, drained and rinsed

grated Parmigiano-Reggiano cheese, plus extra for garnish

Parmigiano-Reggiano cheese rind (optional)

basil leaves

Kosher salt and fresh black pepper,