Make this recipe a recipe that people in that category can eat. categories: ['low_carb'], recipe: layer the potatoes, ham and onions in a baking dish. prepare a white sauce: in a medium saucepan stir milk into cornstarch while stirring with a whisk. whisk until smooth. add margarine, salt and pepper. stirring constantly, bring to boil over medium heat; boil 1 minute. pour white sauce over potatoes. bake at 350f for 40 minutes or until potatoes are tender.

Target recipe: melt butter in large sauce pan over low heat; blend in flour, salt, and pepper. cook, stirring constantly, for about 1 minute. remove from heat gradually stir in milk. return to heat; cook until thickened and bubbly. fold in ham, onion, green pepper and cheese. pour over potatoes in a large bowl. stir gently then move into a buttered 13x9-inch baking dish; cover with foil. bake at 350 degrees for 30 minutes. uncover and continue to bake for 1 hour. let stand for 10 minutes before serving.