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A scoop of baked mashed potatoes garnish with cheese, bacon pieces and chives.
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5 from 9 votes

The Best Loaded Mashed Potato Casserole

Loaded Mashed Potato Casserole with bacon and lots of cheese. It is a must Thanksiging sidedish.
Prep Time10 mins
Cook Time45 mins
Total Time55 mins
Course: Side Dish
Cuisine: American
Keyword: mashed potato
Servings: 12
Author: Love Keil


  • 5 lb organic potatoes peeled and sliced
  • 3/4 cup sour cream
  • 1 cup milk
  • 5 tablespoons butter
  • salt & pepper to taste
  • 3 cups medium Chadder cheese shredded
  • 8 slices bacon baked in the oven 400F for 10 min,
  • chives chopped for garnish


  • First, place bacon on a baking sheet lined with foil paper and bake at 400F for 10 min or until crispy texture, after finely chop bacon into tiny pieces for garnish & set aside.
  • While bacon is baking, peel and slice 5 lb potatoes and place them into a big pot. Cover potatoes with water and bring it to a boil. After potatoes start boiling reduce the heat to medium/high and cook for about 10-15 minutes or until potatoes turn soft when inserted with a knife.
  • Preheat the oven to 350F.
    Drain water and place potato in a big mixing bowl. Now add 3/4 cup sour cream, 1 cup milk, 5 tablespoons of butter, salt and pepper to taste. Blend with a blender until fluffy texture.
  • Using a spatula fold in 2 cups of cheese, then trasfer potatoes to a casserole dish, top with 1 cup of shredded cheese and bake uncovered at 350F for 30 minutes or until heated thru.
  • Garnish potato casserole with crumbled bacon pieces and finely chopped fresh chives. Enjoy!


  • How to Make Loaded Mashed Potatoes Ahead: When cooking for the event like Thanksgiving, make this potato casserole ahead by following step 1-3, then cover the casserole and place it in the fridge until you are ready to bake it.  About 30 minutes before serving follow step 4-5. 
  • What to Make with Mashed Potatoes? If you have leftover mashed potatoes you must try these 3 mouthwatering easy recipes using mashed potatoes:
Cheese Stuffed Potato Balls
Potato Pierogi
Mashed Potatoes with Russet Potatoes & Macaroni
  • How to store leftover mashed potatoes? Store leftover mashed potatoes in a airtight container inside the fridge for up to 3 days.
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