Ten vegetable minestrone

Name: Ten vegetable minestrone
Ingredients: 1 onion, medium, finely diced; 2 celery sticks, finely diced; 3 flat leaf parsley stalks, leaves only; 1-2 tablespoons olive oil; 1 potato, medium, peeled, 1 cm cubes; 2 tomatoes, peeled, seeded and diced; 1 zucchini, small, cubed; 50g peas, fresh; 50g green beans, fresh, cut into 2 cm lengths; 1.5 litres vegetable stock; 50g borlotti beans, canned; 4 stalks silverbeet, chopped, leaves only; 140g cooked rigatoni; salt and freshly ground pepper to taste; 4 tablespoons ricotta pesto (see recipe below); extra ricotta for crumbling over soup Pesto; 1 bunch basil; 1 garlic clove; ½ tablespoon pine nuts; 1 tablespoon parmesan; 50g ricotta; 50ml olive oil