Tuna Noodle Casserole - cooking recipe

Ingredients

2 Tbsp. butter
2 Tbsp. flour
1 tsp. mustard
2 c. milk
salt and pepper

Preparation

Boil until thick.
Put cooked noodles in a 4-cup Pyrex dish. Crumble drained tuna (two 5 ounce cans) over noodles.
Pour the gravy over the tuna.
Cover with potato chips.
Bake 30 minutes at 350\u00b0.