Why settle for plain potatoes when you can take them to the next level with this delicious mashed potato casserole!
Made with creamy mashed potatoes, bacon, and plenty of cheese, this ultimate comfort food is ideal for family dinners, potlucks, and special occasions. It's sure to be a guaranteed hit!
Mashed potatoes is one of our favorite Vegetable Side Dishes to serve with any of our Family Dinner Ideas.
This recipe is very easy to put together. It takes a very simple recipe for mashed potatoes and elevates it into layers of potatoes, cheese and bacon!
You can serve this recipe alongside pot roast, classic beef stew, roast chicken or any of my favorite chicken cutlet recipes. It's even a great option for the vegetarian in your life...if you leave the bacon out!
So don't wait any longer – treat yourself and your loved ones to an easy-yet-impressive dish of creamy mashed potato goodness today!
Looking for more potato side dish recipes? Try my Air Fryer Potatoes, Prep-Ahead Company Mashed Potatoes or my Bacon Roasted Cheesy Potatoes...yum!
Table of Contents
Mashed Potato Casserole without Sour Cream
If you don't like the flavor of sour cream, you can definitely leave it out of this recipe. The casserole will still be flavorful! You could try adding the same amount of Greek plain yogurt. It will give you the same richness to the dish without the flavor of sour cream.
The yogurt will help add moisture and richness to the casserole so that it stays creamy while it's baking in the oven. It's a simple addition that makes a big impact!
🛒Helpful Kitchen Tools
Potato Ricer Stainless Steel 15 Oz Ricer, Premium Stainless Steel Potato Ricer,Mashed Potato Ricer, 3 Interchangeable Discs
2-QT Casserole DishOXO Good Grips Vegetable PeelerElectric Peeler
📋Ingredients:
Here's a quick overview of the ingredients for this recipe. Find the exact amounts and click the Instacart button to easily add them to your cart – all in the printable recipe card below!
- 6 potatoes, washed, peeled and cubed
- Butter; melted
- Sour cream
- Shredded cheddar cheese
- 4 slices bacon
- White onion
- Green onion; for garnish
- ¼ cup milk
Recipe Variations
You can also mix in veggies such as carrots or peas for a healthier, more flavorful side dish.
Using different types of cheese, herbs, and spices - like chives, parsley, and paprika.
Instead of bacon, you could add crumbled cooked sausage!
Step-by-Step Instructions
Step 1: Put the potatoes in a pot and cover them with water. Bring the water to a boil, then cook until the potatoes are easily pierced with a fork, approximately 20 minutes.
Step 2: Combine the potatoes with milk, sour cream, salt, and pepper, mashing them together. Set this mixture aside as you begin preparing the onions, garlic, and bacon blend.
Prepare the Onion and Bacon
Step 3: Heat the oil in a skillet. Then sauté the onion and garlic for a few minutes.
Step 4: Next, incorporate half of the cooked. And then add the crumbled bacon into the skillet with the onions and garlic.
Step 5: Mix the onion, garlic, and bacon blend into the mashed potatoes.
Step 6: Scoop the mixture into a 2-quart casserole dish that has been coated with non-stick baking spray. Sprinkle the top with cheddar cheese and the rest of the crumbled bacon.
Baking Instructions
Step 7: Place in a preheated oven set to 385°F and bake for 10 to 15 minutes until the cheese is melted and bubbling and the potatoes are heated through. Optionally, sprinkle with sliced green onions just before serving.
Before You Begin!
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Make it a Meal
This is the perfect side dish for so many main dish recipes that your family already loves.
Try this casserole with my favorite Cast Iron Chicken Breasts or an easy recipe of Italian Chicken Cutlets.
If you're looking for a vegetable to round out the meal, try this recipe for Roasted Root Vegetables.
Storage Tips
Store leftover mashed potato casserole, in an airtight container in the refrigerator within two hours of when the casserole was cooked.
The casserole can last 3 to 4 days when stored correctly.
You could even store the leftover casserole into single-serve glass containers to make reheating leftovers easy.
Freezing Tips
You can also freeze any leftovers in the same air-tight containers.
Make sure you use containers that are safe for the freezer.
Thawing and Reheating Tips
Reheat any leftovers in a preheated 350°F oven or toaster oven. Remove the casserole from the container and place in an oven-safe dish.
Cover it loosely with aluminum foil and bake for 15 minutes or until the potatoes are heated through.
If the mashed potato casserole was frozen, you can place container in the refrigerator the night before and continue with the same reheating tips.
The casserole is heated through completely when it reaches an internal temperature of 165°F. Use a digital thermometer to check.
Be sure not to let it sit too long in the oven or the mashed potatoes will dry out.
More Recipes to Love
📖 Recipe Card
Mashed Potato Casserole
Ingredients
- 3 pounds potatoes peeled and cut into bite-sized pieces
- 8 ounces bacon cooked and crumbled
- 1 medium onion chopped
- 1 teaspoon garlic minced
- ¼ cup butter
- 1 cup sour cream
- ½ cup shredded cheddar cheese
- Salt and Pepper to taste
- 1 teaspoon vegetable oil
- ⅓ cup green onions sliced for garnish if desired
Instructions
- Preheat oven to 385°F,
- Add the potatoes in a large pot and cover them with water. Boil the potatoes until a fork goes through them easily.
- Drain the potatoes and transfer back to the pot.
- Add the ¼ cup butter and sour cream.
- Mash the potatoes. Season with salt and pepper.
- Set aside while you prepare the onions.
- Add the oil to a medium size skillet and allow it to heat.
- Add the chopped onions and garlic. Cook the onions for a few minutes until translucent.
- Then add ½ the bacon crumbles and allow them heat through and combine with the onions.
- Add the mixture to the mashed potatoes and mix all together.
- Transfer the potato mixture to 2 quart sized casserole baking dish that's been sprayed lightly with non-stick baking spray.
- Cover the potatoes with the shredded cheddar cheese.
- Sprinkle the remaining bacon crumbles over the top.
- Bake in the oven for 10 minutes or until the cheese is melted and the casserole is heated through.
- Garnish with the sliced green onions and enjoy.
Notes
This recipe has been updated since it first appeared in 2015 with new photos, information and a new printable recipe card that includes nutritional information. I hope you enjoy the updates as much as I enjoyed working on them!
Catherine Sokolowski says
I need to make this for my daughter. I can't wait to surprise her the next time she comes for dinner.
Lois says
I hope you enjoy the recipe!
Moore or Less Cooking Food Blog says
Hi Lois!! Congratulations!! Your wonderful Mashed Potato Casserole is featured on our Simple Supper Tuesday Linky Party at Moore or Less Cooking Food Blog! Nettie
Miz Helen says
This is a great mashed Potato Casserole, it looks great. Thanks for sharing with Full Plate Thursday and come back soon!
Miz Helen
Michelle Nahom says
My kids would love this too! When my father in law was alive, he would cook Thanksgiving dinner and he would put bacon in everything and it became a tradition. This was our first Thanksgiving without him and my oldest son requested bacon in everything. LOL
Mitzi says
Oh my goodness--I think I just found my new favorite comfort food! Thanks for sharing at Motivation Monday 🙂
Nicole Neverman says
This casserole sounds amazing! What's not to love with that great ingredients list? If you had a spare moment, I would be delighted if you'd drop this (and anything else you'd like to share) by at the #PureBlogLove DIY and recipe link party! You can find me here: http://picnicnz.blogspot.co.nz/
Jessica Jarrell says
That looks yummy with a capitol Y! My husband would go nutty over this, definitely going to try it out on him! 🙂