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Loaded Baked Potato Casserole

Loaded baked potato casserole combines creamy mashed russet potatoes, crisp bacon, and sour cream under a layer of melted cheddar. Bake it in a 9x13-inch dish until the edges are bubbling, then finish with green onions.
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Prep Time 20 minutes
Cook Time 50 minutes
resting 10 minutes
Total Time 1 hour 20 minutes
Servings: 8 servings
Course: Side Dish
Cuisine: American
Calories: 375
Ingredients Equipment Method Notes

Ingredients
  

For the casserole
  • 8 bacon slices
  • 3 lb russet potatoes peeled and cut into 1-inch chunks
  • 4 tbsp unsalted butter
  • 0.5 cup whole milk warmed
  • 1 cup sour cream
  • 1.5 tsp kosher salt
  • 0.5 tsp black pepper
For the topping
  • 1.5 cup sharp cheddar cheese shredded
  • 0.5 cup green onions thinly sliced

Equipment

  • 1 9x13-inch baking dish
  • 1 12-inch skillet

Method
 

Prepare the casserole
  1. Preheat the oven to 375°F.
  2. Grease a 9x13-inch baking dish.
  3. Cook the bacon in a 12-inch skillet over medium heat for 8–12 minutes, turning as needed, until crisp.
  4. Drain the bacon on paper towels, then crumble.
  5. Put the potatoes in a 6-quart pot and add cold water to cover by 1 inch.
  6. Bring to a boil over high heat.
  7. Reduce the heat and simmer for 15–20 minutes, until the potatoes are fork-tender.
  8. Drain the potatoes well and return them to the pot.
  9. Mash the potatoes with the butter.
  10. Stir in the warm milk, sour cream, salt, and pepper until creamy.
  11. Fold in the crumbled bacon.
  12. Spread the potato mixture evenly in the prepared baking dish.
Top and bake
  1. Sprinkle the cheddar evenly over the potatoes.
  2. Bake for 20–25 minutes, until the cheese is melted and the edges are bubbling.
  3. Rest for 10 minutes.
  4. Sprinkle with the green onions.

Notes

For the creamiest texture, mash the potatoes while hot and drain them well. Refrigerate leftovers in an airtight container for up to 4 days; freezing is not recommended because the dairy may separate. Reduced-fat sour cream can be used as a lighter option.