Make the ultimate loaded baked potato casserole with crispy bacon, cheese, and sour cream. Easy step-by-step instructions for perfect results every time.
Potatoes are one of my favorite foods, though surprisingly Tyler and Ryan aren’t the biggest fans unless it’s French fries. I love mashed potatoes, cheesy potatoes, and baked potatoes, so this recipe combines them into casserole form. As a Southerner, we enjoy our casseroles!
This easy loaded potato casserole would be a great option for a holiday meal such as Thanksgiving dinner or Christmas dinner. You can also make it for a potluck as a side dish or for personal consumption to go with a family Sunday dinner.
Honestly, although it’s such a delicious side dish, I have been known to eat casseroles like this as my main course!
Love these cheesy loaded potato flavors? You can get the exact same taste in a bowl with my slow cooker potato cheddar soup.
Ingredient Variations and Substitutions
If you’re looking to switch up the flavor or adapt based on what you have on-hand, there are several easy substitutions for this dish.
- If you prefer a slightly waxy potato that holds its shape, you can swap in Yukon Gold instead of russets; the Yukon gives a creamier texture while russets yield a fluffier mash.
- If bacon isn’t your thing, try diced ham or smoked turkey bacon for a different smoky note.
- For cheese, feel free to experiment: pepper jack adds a subtle kick, gouda gives a deeper smoky taste, or a blend of Swiss and cheddar adds a nutty complexity.
- Looking to lighten the dish? Replace half the sour cream with plain Greek yogurt to boost protein and reduce fat while keeping that tangy flavor.
- For a dairy-free option, use a lactose-free sour cream and a dairy-free shredded cheese alternative—just keep an eye on melting times since some non-dairy cheeses behave differently in the oven.
Flavor Add-Ins and Customization Ideas
This loaded baked potato casserole is a fantastic base for customizing to your taste or occasion. Want a bit of heat? Fold in one finely chopped fresh jalapeño or mix in a teaspoon of chipotle powder into the potato mash. For a veggie boost, stir in a cup of steamed broccoli florets or a handful of roasted cauliflower just before baking. If you’re turning this into more of a main dish, add a cup of cooked, shredded chicken or crumbled breakfast sausage to make it heartier. For a fresh finish, sprinkle chopped chives or scallions and a drizzle of sour cream after baking. You can even top with crispy fried onions or crushed potato chips for extra crunch and elevate the texture.
Make-Ahead, Storage & Leftovers Tips
This casserole is ideal for advance preparation and leftovers. You can assemble the entire dish (up to the point of baking) the evening before, cover it and refrigerate, then bake it fresh when guests arrive. After baking, any leftovers will keep in an airtight container for up to 3–4 days in the fridge and reheat beautifully in a 350 °F oven for about 15 minutes until warmed through and cheese is bubbly. For longer storage, freeze in individual portions: wrap tightly and freeze for up to 2 months. Thaw overnight in the refrigerator and reheat in the oven. Leftover casserole also makes a great next-day breakfast: serve a warm portion topped with a fried egg and a sprinkle of chives for a loaded potato breakfast skillet vibe.
Serving Suggestions & Pairings
This casserole makes a versatile side dish, but it can also pull double-duty as a main. Pair it with a crisp green salad dressed with lemon-vinaigrette to cut through the richness and provide a refreshing contrast. For protein, serve alongside grilled chicken breast, roasted pork tenderloin, or barbeque brisket. On game-day or for potlucks, serve it right from the baking dish on a trivet so guests can help themselves—top it with extra bacon and chopped green onion right before serving for visual appeal. If you’re serving it at a holiday meal, consider placing it next to roasted Brussels sprouts or glazed carrots to round out a comfort-food spread.
Why the Ingredients Matter
Each component plays a role in building flavor and texture in this casserole. The potato base provides comfort and substance; using half and half (or evaporated milk) along with sour cream keeps the mixture rich, tangy, and creamy while avoiding it becoming too heavy. The bacon adds smoky, meaty contrast and texture. Shredded cheddar brings that bubbly, melty cheese state we all love—but starting with good quality sharp cheddar ensures the cheese flavor still pops after baking. The green onion (or scallion) adds freshness and a mild onion bite that balances the richness. Baking the mashed potato mixture allows the flavors to meld and the top to take on a slight crust, which gives an ideal contrast of creamy interior and crisp top.
Common Troubleshooting & FAQ
If your casserole turns out watery, it’s likely because the potatoes were over-boiled or not drained well before combining with dairy. To avoid this, drain the potatoes thoroughly and let them dry in the pot for a minute before mashing. If your top cheese layer didn’t brown, your oven may not have been hot enough or the dish was covered; baking uncovered for the last 5 minutes usually solves that. If the potatoes are too firm after baking, ensure you boiled them until fully fork-tender (20 minutes is a guide—adjust based on potato size) and mash until smooth before baking. Want a crispier top? After baking, switch your oven to broil for 1–2 minutes (watch it carefully) to crisp the cheese without overcooking the interior.
Nutritional Notes & Metric Conversions
Here are approximate conversions and nutritional notes to help readers track or adapt the dish. For example, if you use 1 kg of potatoes instead of 10 Yukon Golds, that’s roughly equivalent. Replace 1 cup sour cream with 240 mL plain Greek yogurt for a lighter swap. If you’re tracking macros: a 1-cup serving of this casserole (with standard ingredients) contains approximately 280–320 calories depending on bacon and cheese type, and may contain around 15–20 g of protein, 14–18 g of fat, and 24–28 g of carbohydrates. Bakers wanting to lighten it further could reduce cheese by ¼ cup and use reduced-fat sour cream without a dramatic loss of comfort.
Loaded Baked Potato Casserole Step by Step
Ingredients
- 3 lbs russet potatoes, washed and diced
- ¼ cup unsalted butter
- 4 oz cream cheese
- ⅔ cup sour cream
- ½ cup whole milk
- 1 tsp garlic powder
- 1 tsp onion powder
- ½ tsp salt
- ½ tsp black pepper
- 2 cups extra sharp cheddar cheese, shredded
- ½ lb bacon
- ¼ cup green onions, sliced
Preparation
Preheat the oven to 375F.
Prepare a 9×13 baking dish with cooking spray or olive oil.
Boil the potatoes in a large pot with water until they are tender, about 15 minutes.
Meanwhile, cook and crumble the bacon.
Drain and place potatoes back in the empty stockpot or a large bowl then fold in butter, cream cheese, sour cream, milk, seasonings, and half of the cheddar cheese.
Pour the potato mixture into the prepared pan.
Top with the bacon and remaining cheese.
Bake for 25-30 minutes, until the cheese is melted and the casserole is bubbly.
Remove from the oven and top with the sliced green onion then serve warm.
Loaded Baked Potato Casserole Leftovers
Storage: Let the casserole come to room temperature and cover with plastic wrap or aluminum foil. Refrigerate for up to 3 days.
Reheating: To reheat, place the casserole in a medium pot over medium heat and stir until warmed through. If it is thick, you can add a little bit of milk, melted butter, or heavy cream.
Freezing: For the best results, freeze the casserole before baking as mentioned above. Otherwise, let the casserole come to room temperature and place it in freezer-safe containers. Freeze for up to one month. Thaw overnight in the refrigerator before reheating.
Recipe
Originally Published On: September 2, 2024
Last Updated On: October 23, 2025
Loaded Baked Potato Casserole
Ingredients
- 3 lbs russet potatoes (washed and diced)
- ¼ cup unsalted butter
- 4 oz cream cheese
- ⅔ cup sour cream
- ½ cup whole milk
- 1 tsp garlic powder
- 1 tsp onion powder
- ½ tsp salt
- ½ tsp black pepper
- 2 cups extra sharp cheddar cheese (shredded)
- ½ lb bacon
- ¼ cup green onions (sliced)
Recommended Equipment
Instructions
- Preheat the oven to 375F
- Prepare a 9×13 baking dish with cooking spray or olive oil
- Boil the potatoes in a large pot with water until they are tender, about 15 minutes
- Meanwhile, cook and crumble the bacon
- Drain and place potatoes back in the empty stockpot or a large bowl then fold in butter, cream cheese, sour cream, milk, seasonings, and half of the cheddar cheese
- Pour the potato mixture into the prepared pan
- Top with the bacon and remaining cheese
- Bake for 25-30 minutes, until the cheese is melted and the casserole is bubbly
- Remove from the oven and top with the sliced green onion then serve warm
All nutritional information is based on third-party calculations and should be considered estimates. Actual nutrition content will vary based on brands used, measuring methods, portion sizes, and more.
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This looks so good! It’s a perfect example of what I always say. If you can make something into a casserole, you should!
Booyah! This is one of the best casseroles I’ve ever made. I served it with fried chicken last night. DEE-licious.
Looks so good and easy to make. Definitely added to my list.
Wow, baked potatoes! I’ve never tasted this. It’s perfect for big gatherings. I could bring this as a potluck dish for the Christmas party.
I needed something new to try for the holiday season, and I’m sure my son and son-in-law would love this!
What a great Loaded Baled Potato Casserole. Perfect for fall gatherings and a family comfort food! YUM.
Absolutely classic! The best side dish to any simple main meat dish. I’m making this anytime I grab a rotisserie chicken and it will taste like a feast!!
Absolutely love a good baked potato casserole and it looks quite delicious! Definitely would give this recipe a try sometime soon.
Wow! This looks so delicious! I can’t wait to make one of it, I am sure my family will like it.
Potatoes aren’t *one* of my favourite foods. They are my favourite food and this recipe is an absolute winner.
I love baked potatoes and this recipe looks so rich and yum! Thank you for providing all the helpful tricks and make ahead options, can’t wait to give it a go!
Just had a Halloween Party with Sloppy Joe’s as main dish. This would have been a great companion dish!