Produce Depot » Creamy Watercress Soup

Ingredients

• 2 tablespoons extra virgin olive oil
• 2 medium onions, finely chopped
• 2 cloves garlic, finely chopped or minced
• 4 bunches of fresh watercress, washed and rinsed well
• 8 cups chicken or vegetable stock
• 4 medium potatoes, peeled and cubed
• 2 cups low fat (skim) milk
• fresh lemon slices for garnish
• sea salt and freshly ground black pepper to taste