Green Vegetable Soup

Ingredients

• 1 tablespoon olive oil
• 1 onion, finely chopped
• 1 large leek, split and thinly sliced
• 1 celery, thinly sliced
• 1 garlic clove, finely chopped
• 6 cups water
• 1 medium potato, diced
• 1 parsnip, finely diced
• 1 small kohlrabi or 1 small turnip, diced
• 5 1/2 ounces fresh peas (or frozen)
• 2 small zucchini, cut into fourths lengthwise and sliced
• 14 ounces small cannellini beans, drained and rinsed
• 3 1/2 ounces spinach leaves, cut into thin ribbons
• salt and pepper
• Pesto
• 1 large garlic clove, very finely chopped
• 1/2 cup fresh basil leaf
• 1 cup freshly grated parmesan cheese
• 4 tablespoons extra virgin olive oil