Cook potatoes then dice

Melt the butter in a saucepan and stir in the flour and seasoning

Cook, stirring constantly, until the mixture bubbles

Gradually add the milk,and cook over low heat, stirring constantly until the sauce boils and thickens

Stir in 3⁄4 cup grated cheese and the diced potatoes

Turn into a baking dish, top with the rest of the cheese

Bake at 375°F about 15 minutes, until the cheese melts and browns