Loaded Mashed Potato Casserole is like a hug in a dish! Creamy mashed potatoes get a serious upgrade with melted cheese, crispy bacon, and a sprinkle of green onions. It's all your favorite potato toppings, baked to bubbly, golden perfection. Perfect for when you want your mashed potatoes to be the star of the show!
This casserole is the ultimate comfort food, bringing all the cozy vibes with minimal effort. It’s like all the best parts of a loaded baked potato got together for a party and decided to make a casserole instead! The creamy mashed potatoes are the perfect base for layers of melted cheese, crispy bacon, and green onions, and let’s be honest—who doesn’t love a dish that practically invites you to dive in with a fork?
Please leave us a comment or rating below to let us know what you think of the recipe!
Try some of our other favorite side dishes: Zucchini Tomato Casserole, Southern Squash Casserole, Cucumber Tomato Onion Salad, or Cheesy Broccoli Casserole.
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Ingredients for Mashed Potato Casserole
- potatoes
- minced garlic
- butter
- sour cream
- milk
- bacon
- cheddar cheese
- salt
- black pepper
- green onions
FAQs
It’s a creamy, cheesy, and hearty casserole made with mashed potatoes, loaded up with all the classic toppings like shredded cheese, crispy bacon, and green onions. It’s like a loaded baked potato but in comforting casserole form!
Yes! While homemade mashed potatoes give the best texture, instant mashed potatoes can work in a pinch. Just make sure they’re thick and not too watery.
Definitely! You can assemble the casserole a day ahead, cover it tightly, and refrigerate. When you’re ready to bake, just pop it in the oven and bake until heated through and bubbly.
It can be both! It’s a perfect side dish for holiday dinners or weeknight meals, but it’s hearty enough to be a main dish, especially if you add extra toppings like pulled pork or grilled chicken.
Yes! Assemble the casserole, let it cool completely, then wrap it tightly and freeze for up to 2 months. When ready to eat, thaw in the refrigerator overnight and bake until hot and bubbly.
Top Tips
- For the creamiest mash, go for starchy potatoes like Russets or Yukon Golds. They create a fluffier texture that works perfectly in this casserole.
- When mashing your potatoes, avoid over-mixing to keep them light and fluffy. Over-mixing can make them gummy, and nobody wants that in their casserole!
- While cheddar is classic, feel free to mix in other cheeses like mozzarella, Monterey Jack, or even a little Parmesan for extra depth of flavor.
- Don’t stop at bacon and cheese! You can mix in green onions, caramelized onions, sautéed mushrooms, or even roasted garlic for extra flavor.
- The casserole is ready when it’s golden and bubbly on top. If you like a crispy top, broil for the last couple of minutes, keeping a close eye to avoid burning.
- Store any leftovers in an airtight container in the refrigerator for up to 3-4 days. Reheat before serving for the best texture and flavor.
How to make Loaded Potato Casserole
- Place the chopped potatoes in a large pot and cover with cold water. Add a generous pinch of salt and 2 tablespoon minced garlic. Bring to a boil and cook until the potatoes are fork-tender, about 15-20 minutes. Drain the potatoes well.
- Preheat your oven to 350°F (175°C) and grease a 9x13-inch baking dish.
- In the same pot, add the drained potatoes, butter, sour cream, and milk. Mash until smooth and creamy. If using, add cream cheese for extra richness. Season with salt and pepper to taste.
- Stir in 2 cups of shredded cheddar cheese, half of the green onions, and half of the bacon.
- Spread into the prepared baking dish. Top with the remaining cheese and bacon. Bake in the preheated oven for 20-25 minutes, or until the cheese is melted and bubbly. Remove from the oven and garnish with the remaining green onions. Let it cool slightly before serving.
Easy Loaded Mashed Potato Bake
Ingredients
- 3 lbs potatoes, peeled & diced (1 inch cubes)
- 2 tablespoon minced garlic
- ½ cup milk or heavy cream
- ½ cup butter
- ½ cup sour cream
- salt and pepper to taste
- 3 cups cheddar cheese, shredded
- ½ cup bacon, cooked & crumbled
- ½ cup green onion, sliced
Instructions
- Place the chopped potatoes in a large pot and cover with cold water. Add a generous pinch of salt and 2 tablespoon minced garlic. Bring to a boil and cook until the potatoes are fork-tender, about 15-20 minutes. Drain the potatoes well.
- Preheat your oven to 350°F (175°C) and grease a 9x13-inch baking dish.
- In the same pot, add the drained potatoes, butter, sour cream, and milk. Mash until smooth and creamy. If using, add cream cheese for extra richness. Season with salt and pepper to taste.
- Stir in 2 cups of shredded cheddar cheese, half of the green onions, and half of the bacon.
- Spread into the prepared baking dish. Top with the remaining cheese and bacon. Bake in the preheated oven for 20-25 minutes, or until the cheese is melted and bubbly.
- Remove from the oven and garnish with the remaining green onions. Let it cool slightly before serving.
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