This Loaded Mashed Potato Casserole is the perfect make ahead side dish! It's filled with bacon and cheese and feeds a crowd! #loadedpotatoes #mashedpotatoes
Loaded Mashed Potato Casserole
Prep Time
30 mins
Cook Time
25 mins
Total Time
55 mins

This Loaded Mashed Potato Casserole is the perfect side dish! It's filled with bacon and cheese, and can easily be made ahead! 

Course: Side Dish
Cuisine: American
Keyword: cheesy potato casserole, Loaded potato casserole
Servings: 10
Calories: 579 kcal
Author: Malinda Linnebur
  • 4.5 pound (2kg) russet or Yukon gold potatoes, peeled and cut into small chunks
  • 1 cup (225g) sour cream
  • 6-8 ounces (225g) cream cheese, soft
  • ¾-1 cup (235ml) milk
  • 1-2 teaspoons garlic powder
  • salt and pepper to taste
  • cups (195g) shredded cheddar cheese
  • ¼ cup (30g) grated Parmesan cheese
  • 10-12 slices bacon, cooked and crumbled
  • 2 green onions, chopped
  1. Place potatoes in a large pot and cover with water. Bring to a boil then reduce to a simmer and cook until potatoes are tender. Drain well. Add sour cream, cream cheese, milk, garlic powder, salt, and pepper. Mash until creamy. Stir in 1½ cups cheddar, Parmesan cheese, and ½ of the bacon. 

  2. Transfer to a lightly greased 9x13 baking pan. Sprinkle with remaining cheese and bacon. Bake uncovered at 350 degrees F for 25-30 minutes or until heated through and cheese is melted. Top with green onions before serving. 

Recipe Notes
  1. Make ahead option: Can make this the night before, cover, and refrigerate. Be sure to remove from the refrigerator at least 30 minutes before baking. May need to add on more baking time to completely heat the potatoes through. 
  2. Nutrition Facts: Since different brands of ingredients have different nutritional information, the information shown is just an estimate.
Nutrition Facts
Loaded Mashed Potato Casserole
Amount Per Serving
Calories 579 Calories from Fat 315
% Daily Value*
Fat 35g54%
Saturated Fat 20g125%
Cholesterol 107mg36%
Sodium 687mg30%
Potassium 1047mg30%
Carbohydrates 40g13%
Fiber 2g8%
Sugar 3g3%
Protein 26g52%
Vitamin A 1070IU21%
Vitamin C 12.3mg15%
Calcium 583mg58%
Iron 2.4mg13%
* Percent Daily Values are based on a 2000 calorie diet.