Curried Spinach Soup

Details

Ingredients

• 1 large potato - peeled and cubed
• 6 tablespoons olive oil
• ½ cup chopped green onions
• 12 cups spinach - rinsed, stemmed, and dried
• ⅓ cup all-purpose flour
• 2 teaspoons curry powder
• 4 cups chicken broth
• 1 tablespoon lemon juice
• 1 (8 ounce) carton nonfat sour cream