Preheat oven 425. Add to a large saucepan:
Cover with water, bring to a boil, reduce heat and simmer five minutes. Add:
Simmer until potato is almost tender, about eight minutes. Drain. Arrange in an 11×7 baking dish coated with cooking spray, sprinkling evenly with:
Add to a medium saucepan:
Whisk until blended. Gradually add while stirring:
Add:
Cook, stirring frequently, over medium heat until thick, about seven minutes. Remove from heat and gradually add while stirring:
Pour cheese mixture into baking dish and gently toss. Combine:
Sprinkle over baking dish and bake until thoroughly heated, about fifteen minutes.
Recipe adapted from Cooking Light Annual Recipes 2009, p43