Ingredients

• 4 cups sliced potatoes
• 1 , 16 ounce
• 1 cup milk , or as needed
• 3 tablespoons butter
• 3 tablespoons all-purpose flour
• 0.5 cups mayonnaise
• 0.5 cups grated Parmesan cheese
• 1 teaspoon Worcestershire sauce
• 1 teaspoon prepared mustard

Instructions

1. 1 Place potatoes into a large pot, cover with salted water, and bring to a boil. Reduce heat to medium-low and simmer until tender, 10 to 15 minutes. Drain.
2. 2 Mix reserved liquid from salmon and enough milk to make a total of 2 cups together in a measuring cup or bowl.
3. 3 Preheat the oven to 375 degrees F (190 degrees C). Generously grease a casserole dish.
4. 4 Melt butter in a saucepan over medium-low heat. Stir flour into melted butter and cook until dissolved, about 1 minute. Gradually add milk mixture to butter-flour mixture; cook, constantly stirring, until sauce is thickened and smooth, 5 to 10 minutes.
5. 5 Layer potatoes, salmon, and sauce, alternating 1 or 2 times, into the prepared casserole dish.
6. 6 Whisk mayonnaise, Parmesan cheese, Worcestershire sauce, and mustard together in a bowl; pour over casserole.
7. 7 Bake in the preheated oven until casserole is bubbling, about 30 minutes.

Nutrition per serving