Wash the fava beans.
Clean and wash the green vegetables.
Cut the potatoes and pumpkin into cubes, slice the onion and slice the carrots.
In a large saucepan put three or four tbsp of Extra Virgin olive oil and crushed garlic, allowing it to colour, then add the peeled tomatoes and turmeric.
Add potato and pumpkin cubes. Add salt and pepper. Stir and when everything is well mixed add the vegetable broth and broad beans.
Cook over medium heat until the vegetables are dissolved.
Meanwhile, cut the lemon into thin round slices. Ten minutes before removing from heat, add the lemon slices to the soup.