Creamy Carrot Ginger Soup with Roasted Potatoes

Name: Creamy Carrot Ginger Soup with Roasted Potatoes
Ingredients: Creamy Carrot-Ginger Soup; 2 tablespoons extra virgin olive oil; 1 large onion, cut into medium dice; 1 teaspoon salt; 2 pounds carrots, peeled and cut into 1/2 inch rounds; 5 cups water; 1/2 medium potato, peeled and cut into medium chunks; 1 teaspoon lemon juice; 1 1/2 teaspoons ginger juice; Roasted Potato Garnish; 1 cup potato, cut into small dice; 1 tablespoon extra virgin olive oil; 1/4 teaspoon freshly cracked black pepper