Quick Turkey and Rice Soup

Melt butter in a medium saucepan over medium-high heat. Add leek, celery root, parsnip, 1 1/2 teaspoons salt, and 1/4 teaspoon pepper. Cook, stirring occasionally, until leek is translucent, about 2 minutes.

Add stock, and bring to a boil. Reduce heat, and simmer until vegetables are tender, about 5 minutes. Stir in turkey and rice, and cook until heated through. Season with salt and pepper, and serve immediately.