Caramelize 1 onion and a clove or garlic in "a tiny drizzle of olive oil" as Jamie Oliver would say (ie, a lot of it).
Add carrots, leeks, 3 tiny potatoes, a tomato and a handful of green beans and cook for 5-7 min.
Add water and a cube of chicken stock + salt and pepper.
At the end, add tomato passata and mix. Delicious and perfect for a shitty weather sunday at home in cosy woolen gorgeousness.