Tuna Scalloped Potatoes

Tuna, potatoes and onions, layered and topped with a mushroom soup and mustard sauce, then baked.

• Preparation Time: 15 mins
• Cooking Time: 60 mins
• Total Time: 1 hr 15 mins
• Calories: 240 Calories

Ingredients

• 1 teaspoon salt
• ½ cup all-purpose flour
• 3 ½ cups milk
• 2 (5 ounce) cans tuna, drained
• 6 cups baking potatoes, peeled and sliced
• ¼ cup yellow mustard
• ½ cup condensed cream of mushroom soup
• 1 ½ cups thinly sliced onions

Recipe Instructions

Step 1

Bring a large pot of salted water to a boil. Add potatoes and cook until tender but still firm, about 10 minutes; Drain. Preheat oven to 300 degrees F (150 degrees C).

Step 2

In a saucepan, combine yellow mustard, flour, milk, salt and 1/2 cup of soup. Mix thoroughly and heat until thickened.

Step 3

Starting with the potatoes, arrange the potatoes, tuna and onions, in alternating layers in a 9x13 inch baking dish. Pour the mustard sauce all over the top.

Step 4

Bake in a preheated oven for 1 hour or until hot and bubbly.