Mixed Vegetable Casserole
["1 1/4 lb. broccoli and cauliflower flowerets (frozen)", "2 1/2 Tbsp. butter", "2 Tbsp. flour", "1 tsp. salt", "1 small onion", "1 c. milk", "3 oz. cream cheese", "3/4 c. Cheddar cheese", "French fried onions (enough to adequately cover)"]
["Cook vegetables and drain.", "Melt butter and add flour and salt.", "Add milk to flour mixture.", "Cook until thick.", "Reduce heat. Add cream cheese; blend until smooth.", "Pour sauce over vegetables and mix slightly.", "Top with cheese and onions.", "Bake at 350\u00b0 until heated through."]
["broccoli", "butter", "flour", "salt", "onion", "milk", "cream cheese", "Cheddar cheese", "onions"]