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Loaded Mashed Potato Casserole

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  • Author: clara
  • Prep Time: 20 minutes
  • Cook Time: 25 minutes baking (plus 15 minutes boiling)
  • Total Time: 1 hour
  • Yield: 8 servings 1x
  • Category: Side Dish
  • Method: Boiling & Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

Ultra‑creamy mashed potato casserole loaded with cheese, bacon, and green onions, topped with buttery, crunchy breadcrumbs—perfect for comforting dinners or holiday sides.


Ingredients

Units Scale
  • 3 lb russet potatoes, peeled and cubed
  • 8 oz cream cheese, softened
  • 1 cup sour cream
  • 1/2 cup milk (or heavy cream)
  • 1 cup shredded cheddar cheese (plus 1/2 cup for topping)
  • 6 slices bacon, cooked and crumbled
  • 1/4 cup chopped green onions (plus extra for garnish)
  • 2 Tbsp unsalted butter, melted (for topping)
  • 1 cup panko breadcrumbs (for topping)
  • Salt & pepper, to taste

Instructions

  1. Preheat oven to 350 °F (175 °C). Grease a 9×13‑inch baking dish.
  2. Place cubed potatoes in a large pot, cover with water, add salt, and bring to a boil. Cook until fork‑tender, about 15 minutes. Drain well.
  3. Return potatoes to pot or large bowl; mash with cream cheese, sour cream, milk, cheddar cheese, bacon, and green onions. Season with salt and pepper.
  4. Spread mashed mixture evenly into prepared baking dish.
  5. In a bowl, mix panko breadcrumbs with melted butter and remaining cheddar cheese. Sprinkle evenly over casserole.
  6. Bake 20–25 minutes until topping is golden brown and filling is heated through.
  7. Remove from oven and let rest 5 minutes. Garnish with extra green onions before serving.

Notes

  • Substitute chives for green onions if preferred.
  • For a lighter version, use Greek yogurt instead of sour cream.
  • Make ahead: assemble and refrigerate (covered) and bake before serving—add 5–10 minutes to bake time.
  • Get extra crisp topping by broiling for 2–3 minutes, watching closely to avoid burning.
  • Keep leftover mashed casserole in the fridge for up to 4 days; reheat covered in a 350 °F oven.

Nutrition

  • Serving Size: 1 cup
  • Calories: 340 kcal
  • Sugar: 2 g
  • Sodium: 520 mg
  • Fat: 20 g
  • Saturated Fat: 11 g
  • Unsaturated Fat: 7 g
  • Trans Fat: 0.3 g
  • Carbohydrates: 26 g
  • Fiber: 2 g
  • Protein: 10 g
  • Cholesterol: 60 mg