Ham And Potato Scallop For Microwave
["1 c. milk", "2 Tbsp. butter", "2 Tbsp. flour", "1 tsp. prepared mustard", "1 1/2 c. cooked, diced ham", "1 tsp. minced onion", "1/4 c. shredded Cheddar cheese", "1/2 tsp. salt", "1/4 tsp. white pepper", "3 medium potatoes, peeled and thinly sliced (about 1 1/2 c.)"]
["Pour milk into 2-cup glass measure and cook 2 minutes; set aside.", "Put butter in 2-cup measure and cook 1 minute.", "Stir in flour and cook 1 minute.", "Briskly stir hot milk, prepared mustard, salt and pepper into butter; set aside."]
["milk", "butter", "flour", "mustard", "ham", "onion", "Cheddar cheese", "salt", "white pepper", "potatoes"]