Tuna Noodle Casserole
["2 c. broken noodles (5 oz.)", "2 Tbsp. flour", "1 tsp. salt", "2 c. milk", "2 Tbsp. melted butter", "2 Tbsp. prepared mustard", "1/4 tsp. pepper", "2 (No. 2) cans tuna"]
["Cook broken noodles in boiling salt water.", "Melt butter in top of double boiler.", "Mix in flour and mustard.", "Add salt and pepper. Blend well; add milk and stir until thickened.", "Place noodles in greased casserole.", "Cover top with tuna, then with white sauce mixture.", "Spread top with broken potato chips.", "Bake at 350\u00b0 for 35 minutes."]
["noodles", "flour", "salt", "milk", "butter", "mustard", "pepper", "tuna"]