Tuna Scalloped Potatoes Recipe

Tuna Scalloped Potatoes Recipe

  • 6 cups baking potatoes, peeled and sliced
  • 1/4 cup yellow mustard
  • 1/2 cup all-purpose flour
  • 3 1/2 cups milk
  • 1 teaspoon salt
  • 1/2 cup condensed cream of mushroom soup
  • 2 (5 ounce) cans tuna, drained
  • 1 1/2 cups thinly sliced onions
  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).
  2. In a saucepan, combine yellow mustard, flour, milk, salt and 1/2 cup of soup. Mix thoroughly and heat until thickened.
  3. Starting with the potatoes, arrange the potatoes, tuna and onions, in alternating layers in a 9×13 inch baking dish. Pour the mustard sauce all over the top.
  4. Bake in a preheated oven for 1 hour or until hot and bubbly.
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