2 tbsp. butter
2 tbsp. flour
1 tsp. salt
1 c. milk
1 c. grated cheese
2 c. cooked cubed potatoes

Melt butter in saucepan. Blend in flour and salt. Add milk gradually; cook until thickened stirring constantly. Add cheese; stir until melted. Remove from heat. Place potatoes in greased baking dish; cover with cheese sauce. Bake at 400 degrees for 30 to 40 minutes.