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Homemade twice baked potato casserole fresh out of the oven on a kitchen counter with melted cheese and crispy bacon on top.

Twice Baked Potato Casserole

This twice baked potato casserole is the ultimate comfort food side dish ; creamy mashed potatoes mixed with sour cream, butter, cheese, and crispy bacon, baked to golden perfection. It’s everything you love about twice baked potatoes, made easy in casserole form.
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Course: Side Dish, Comfort Food
Cuisine: American
Prep Time: 20 minutes
Cook Time: 30 minutes
Rest & garnish: 10 minutes
Total Time: 1 hour
Servings: 8
Calories: 420kcal
Cost: $13

Equipment

  • 1 9x13 inch baking dish
  • 1 Large pot
  • 1 Colander
  • 1 Potato masher
  • 1 Cheese grater
  • 1 Mixing bowl

Ingredients

Main Ingredients

  • 5 pounds russet potatoes peeled and cut into chunks
  • 1 cup sour cream full-fat or Greek yogurt substitute
  • ½ cup butter melted
  • 1 cup whole milk warmed
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 1 teaspoon salt or to taste
  • ½ teaspoon black pepper freshly ground
  • 2 cups cheddar cheese shredded, divided
  • 8 strips bacon cooked crisp and crumbled
  • 4 green onions sliced thin
  • extra sour cream for serving

Instructions

  • Boil potatoes until tender, then drain.
  • Mash with butter, sour cream, and milk.
  • Add seasonings, 1 cup cheese, and half the crumbled bacon. Mix well.
  • Spread into a 9x13-inch baking dish and top with remaining cheese and bacon.
  • Bake at 350°F for 25–30 minutes or until golden and bubbling.
  • Let rest 5 minutes, then garnish with green onions. Serve with extra sour cream if desired.

Notes

Nutrition information is automatically calculated and should only be used as an approximation.

Nutrition

Serving: 250g | Calories: 420kcal | Carbohydrates: 28g | Protein: 14g | Fat: 28g | Saturated Fat: 14g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 9g | Trans Fat: 0.5g | Cholesterol: 65mg | Sodium: 720mg | Potassium: 860mg | Fiber: 3g | Sugar: 3g | Vitamin A: 550IU | Vitamin C: 13mg | Calcium: 220mg | Iron: 1.8mg