Mashed Potato Casserole
A rich and creamy Mashed Potato Casserole topped with cheese, crispy fried onions, and potato chips.
Prep Time 25 minutes mins
Cook Time 20 minutes mins
Total Time 1 hour hr
Course Side Dish
Cuisine American
Servings 10 servings
Calories 350 kcal
oven
baking dish
large pot
small bowl
Casserole
- ½ cup salted butter (1 stick), melted, plus more for the baking dish
- 1 16-oz. sour cream
- 1 1-oz. onion soup mix envelope
- 4 lb. russet potatoes peeled and cut into large chunks
- 1 cup heavy cream warmed
- 1 lb. bacon cooked and crumbled
- 8 oz. monterey jack cheese shredded (about 2 c.)
- ½ cup crispy fried onions lightly crushed
- 1 ½ tsp. kosher salt
- black pepper to taste
Topping
- 1 cup crispy fried onions lightly crushed
- 1 cup kettle cooked potato chips lightly crushed with sea salt
- ¼ cup grated parmesan cheese (about 1 oz.)
- chopped chives or green onions for serving
Casserole Preparation
Preheat the oven to 375°F. Generously butter a 13-by-9-inch baking dish.
In a small bowl, stir together the sour cream and onion soup mix. Refrigerate while you prepare the potatoes so the flavors have time to meld.
Place the potatoes into a large pot and cover them with cold water by 1 inch. Bring the water to a boil over high heat and cook until the potatoes are fork tender, 20 to 25 minutes.
Drain the potatoes well and return them to the same pot. Place the pot back on the same burner (heat turned off) and mash until there are no visible lumps.
Add the prepared onion dip, melted butter, heavy cream, bacon, monterey jack cheese, fried onions, and salt, and stir to combine. Season to taste with pepper. Transfer the mashed potatoes to the prepared baking dish, spreading them evenly.
In a small bowl, stir together the fried onions, potato chips, and parmesan. Sprinkle the mixture evenly over the top of the mashed potatoes. Bake until bubbling and browned on top, 15 to 20 minutes. Sprinkle with chives just before serving.
Serving: 1cupCalories: 350kcalCarbohydrates: 25gProtein: 8gFat: 25gSaturated Fat: 12gPolyunsaturated Fat: 4gMonounsaturated Fat: 8gCholesterol: 55mgSodium: 800mgPotassium: 500mgFiber: 2gSugar: 2gVitamin A: 10IUVitamin C: 15mgCalcium: 20mgIron: 6mg
Keyword Cheesy Casserole, comfort food, easy casserole, Holiday Side Dish, Mashed Potato Casserole, potato dish