Bring 5 cups of water and salt to a boil in a medium saucepan over medium-high heat. Gradually whisk in grits; bring to a boil Reduce heat to medium-low, and simmer, stirring occasionally, 10 minutes or until thickened. Stir in remaining ingredients until cheese is melted and mixture is blended. Serve immediately. Stone-ground grits may be substituted but increase liquid to 6 cups and increase cooking time to 50 minutes.