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A baking dish with potato casserole and a serving spoon
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Loaded Twice Baked Potato Casserole

This loaded Twice Baked Potato Casserole is like baked potatoes in casserole form but with tender potatoes with two kinds of cheesy goodness, crispy bacon bits, and green onions. A loaded potato casserole! It's the perfect side dish for dinner or the holidays.
Course Side Dish
Cuisine American
Keyword twice baked potato casserole
Prep Time 20 minutes
Cook Time 1 hour 25 minutes
Total Time 1 hour 45 minutes
Servings 6
Author Jessica - Together as Family

Ingredients

  • 4 large russet potatoes (washed & scrubbed, pricked with fork)
  • 6 slices bacon divided
  • 1 cup shredded cheddar cheese divided
  • 1/2 cup full-fat sour cream
  • 1/4 cup whole milk
  • 4 green onions thinly sliced
  • ½ teaspoon kosher salt
  • ¼ teaspoon black pepper
  • ¼ teaspoon garlic powder
  • 1/2 cup shredded mozzarella cheese
  • additional sliced green onions (for garnish)

Instructions

  • Preheat the oven to 400℉. Place the washed and fork-pricked potatoes directly onto the oven rack and bake for 45-60 minutes, or until the potatoes are very tender, soft, and easily poked with a fork.
    When done, remove the potatoes from the oven and let them cool slightly, until you can handle them. 
    4 large russet potatoes
  • While the potatoes are cooling (or towards the end of the cook time) cook the bacon until crispy. Let the bacon cool and then chop the bacon into small pieces. 
    6 slices bacon
  • Cut the potatoes in half, lengthwise, and scoop out the insides into a large mixing bowl.
    *Throw away the potato skins as you won't use them in the recipe.
  • To the potatoes, add half of the crumbled bacon, 1/2 cup of the shredded cheddar cheese, sour cream, milk, green onions, salt, pepper, and garlic powder. Mix until well combined. 
    1 cup shredded cheddar cheese, 1/2 cup full-fat sour cream, 1/4 cup whole milk, 4 green onions, ½ teaspoon kosher salt, ¼ teaspoon black pepper, ¼ teaspoon garlic powder
  • Spray an 8x8-inch baking dish with nonstick cooking spray. Spread the potato mixture evenly into the dish. Sprinkle with the remaining cheddar cheese, mozzarella cheese, and the remaining bacon crumbles. 
    1/2 cup shredded mozzarella cheese
  • Reduce the oven temperature to 375℉. Bake the casserole for 20-25 minutes until the cheese is melted and bubbly. 
  • Garnish with the remaining green onions. Serve warm.
    additional sliced green onions