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Loaded Baked Potato Casserole

7 reviews
Test Kitchen Approved
Total Time

Prep: 10 min. Bake: 70 min. + standing

Makes

12 servings

Updated: May. 10, 2023
When I bake this for my family, any leftovers are always gone by morning. In the night, people sneak downstairs for a little snack! Stir in broccoli, asparagus or peas if you've got 'em. —Colleen Trenholm, Dartmouth, Nova Scotia
Loaded Baked Potato Casserole
Loaded Baked Potato Casserole Recipe photo by Taste of Home
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Ingredients

  • 2 pounds potatoes, peeled and thinly sliced (about 6 cups)
  • 1 large onion, halved and thinly sliced
  • 1/4 cup water
  • 1/4 cup butter, cubed
  • 1/3 cup all-purpose flour
  • 1 teaspoon salt
  • 1 teaspoon ground mustard
  • 1/2 teaspoon pepper
  • 2 cups 2% milk
  • 4 cups shredded cheddar cheese, divided
  • 4 cups fresh small broccoli florets
  • 3 cups cubed fully cooked ham
  • 2 tablespoons minced fresh chives

Directions

  1. Preheat oven to 350°. Place potatoes, onion and water in a microwave-safe bowl. Microwave, covered, on high until potatoes are almost tender, 8-10 minutes; drain.
  2. Meanwhile, in a small saucepan, melt butter over medium heat. Stir in flour and seasonings until smooth; cook and stir until lightly browned, 2-3 minutes. Gradually whisk in milk. Bring to a boil, stirring constantly; cook and stir until thickened, 1-2 minutes. Stir in 3 cups cheese until melted. Remove from heat.
  3. To assemble, layer potato mixture, broccoli and ham in a greased 13x9-in. baking dish. Pour sauce over top; sprinkle with remaining cheese.
  4. Bake, covered, 45 minutes. Uncover; bake until potatoes are tender, 25-30 minutes. Sprinkle with chives; let stand 10 minutes.

Nutrition Facts

1 serving: 343 calories, 19g fat (11g saturated fat), 73mg cholesterol, 922mg sodium, 23g carbohydrate (3g sugars, 2g fiber), 21g protein.