Pistou Soup

Ingredients

• 1 medium onion
• 1 lb potatoes
• 1/3 cup grated Parmesan cheese
• 3 tablespoons olive oil
• 1 teaspoon dried thyme
• 4 tablespoons frying oil
• 1 medium zucchini
• 1 leek
• 1 celery stalk
• 2 large carrots
• a handful green beans
• 4 cups basil leaves
• salt and pepper
• 8 cups water
• 1 14 fl oz can cannellini beans
• 2 cloves garlic
• 1 cup green peas
• 2.5 cups small elbow pasta