Vegetable Soup with stalks

1 tablespoon extra virgin olive oil 1 large white onion, coarsley chopped 3 stalks celery , coarsley chopped 8 garlic cloves , minced 2 lbs boneless skinless[...]

2 small leeks , white part only 1 large potato , peeled 1 small onion 2 stalks celery 1 medium zucchini 12 green beans 2 medium carrots , peeled 6 tablespoons[...]