Cook pasta according to packaging. Drain noodles and rinse with cold water to stop the cooking process. Set aside. Reserved about 1 cup pasta liquid.
Heat oil in a skillet, add leek, carrots and italian seasoning. Cook for about 3 minutes then add about 8 tablespoons of reserved pasta liquid to help the leek and carrots cook. Let’s veggies cook thoroughly but still crunchy.
Add cheeses and stir to mix. Add about ½ cup of cooking liquid in cheese mixture to create the sauce. Add crushed peppers, mustard, Mrs. Dash Seasoning, salt and pepper to taste. Add pasta and mix well until each pasta noodle is coated with the creamy sauce. Let cook for about 2 - 3 minutes. Remove from heat and serve immediately with grated cheese if preferred.