Cheesy Potatoes - cooking recipe

Ingredients

6 potatoes, cubed
3 Tbsp. butter
1/3 c. sliced onion
3 Tbsp. flour
1 c. milk
1/2 c. cream
2 tsp. brown mustard
1/4 tsp. salt
1/8 tsp. pepper
dash of nutmeg
1 c. shredded cheese

Preparation

Grease a 1 1/2-quart shallow baking dish; set aside.
Cook potatoes in boiling salted water.
Preheat oven to 350\u00b0.