This Easy Two-Potato Scallop Recipe is a creamy baked casserole made with thinly sliced white potatoes, sweet potatoes, onion, condensed cream of potato soup, milk, and cheddar cheese. It takes approximately 20 minutes to prepare and about 60 minutes to bake at 375°F, making roughly 6 comforting servings.
Every forkful combines tender white potato with naturally sweet, velvety sweet potato, savory onion, and a lightly browned cheddar topping. The covered baking time traps steam to soften the vegetables, while the final uncovered minutes create a warm, bubbling finish that belongs beside roasted meats, holiday dishes, or a simple green salad.
Jump to RecipeWhy You’ll Love This Recipe
This two-potato scallop is the kind of side dish that looks special on the table while relying on straightforward ingredients. White potatoes bring a familiar savory taste and soft, creamy texture, while sweet potatoes add gentle sweetness and a beautiful contrast of color.
The sauce is especially practical because condensed cream of potato soup creates a rich base without requiring a separate stovetop sauce. Milk loosens the soup enough to flow between the slices, and a modest amount of cheddar gives the top a pleasantly salty, toasted finish.
It is also a useful make-and-bake dish for busy dinners. Once the vegetables are sliced and layered, the oven does most of the work, leaving you time to prepare a main course or another side.
- Yield: About 6 servings
- Prep time: Approximately 20 minutes
- Cook time: Approximately 60 minutes
- Oven temperature: 375°F
- Dish size: 2-quart baking dish
If you enjoy sweet potato sides with a little extra character, our smoked paprika sweet potato fries are another delicious option for the menu.
Ingredients You’ll Need
The recipe starts with two medium white potatoes and two medium sweet potatoes. Peel both varieties, then slice them thinly so the layers cook through in the same amount of time.
You will also need 1/2 cup of chopped onion. The onion softens between the potato layers and adds a mellow savory note without requiring a separate sautéing step.
For the creamy mixture, use one 10 3/4-ounce can of condensed cream of potato soup undiluted, along with 1/2 cup milk, 1/2 teaspoon salt, and 1/4 teaspoon pepper. The soup should go straight from the can into the bowl; adding extra water is not part of this recipe.
Finish with 1/2 cup shredded cheddar cheese. A little cooking spray or butter is all you need to grease the 2-quart baking dish and help with serving.
- 2 medium potatoes, peeled and thinly sliced
- 2 medium sweet potatoes, peeled and thinly sliced
- 1/2 cup chopped onion
- 1 can, 10 3/4 ounces, condensed cream of potato soup, undiluted
- 1/2 cup milk
- 1/2 teaspoon salt
- 1/4 teaspoon pepper
- 1/2 cup shredded cheddar cheese
- Cooking spray or a little butter for greasing
How to Make It Step-by-Step
Step 1: Heat the oven to 375°F. Grease a 2-quart baking dish with cooking spray or a small amount of butter, making sure the bottom and sides are coated so the creamy slices are easier to serve later.
Step 2: Peel the white potatoes and sweet potatoes, then slice both varieties as thinly and evenly as possible. Consistent slices matter because thick pieces may need longer to soften, while very thin pieces can become tender sooner.
Step 3: Arrange half of the sliced white potatoes, sweet potatoes, and chopped onion in the prepared baking dish. Distribute the vegetables across the dish rather than placing all of one type in a single corner.
Step 4: Add the remaining white potatoes, sweet potatoes, and onion as a second layer. A simple alternating arrangement helps each serving contain both types of potato and a little onion.
Step 5: Stir the condensed cream of potato soup, milk, salt, and pepper together in a bowl until the mixture is smooth enough to pour. Pour it evenly over the vegetables, aiming for the center and edges so the sauce can work down through the layers.
Step 6: Cover the baking dish securely and bake for about 45 minutes. Keeping it covered traps steam inside, which helps soften the potato slices while protecting the surface from drying too soon.
Step 7: Carefully uncover the dish and sprinkle the shredded cheddar evenly over the top. Return it to the oven and bake for another 15 to 20 minutes, until the potatoes are tender and the cheese is lightly browned.
Step 8: Remove the casserole from the oven and let it stand for about 5 minutes before serving. This brief rest allows the sauce to settle and makes it easier to lift neat, creamy portions.
Chef’s Best Tips for Tender Slices
The most important preparation detail is slice thickness. Both types of potato should be thinly sliced and as close to the same thickness as possible, because even pieces are more likely to finish cooking together.
A mandoline can make quick, uniform slices, but always use its safety guard and keep your fingers away from the blade. If you are slicing with a knife, take your time and aim for consistent pieces rather than rushing.
Do not uncover the casserole during the first 45 minutes. The covered dish holds in steam, and that moist heat is what helps the potatoes become tender before the cheese needs time to brown.
When you uncover the casserole, check that the cheese is spread from edge to edge. The final 15 to 20 minutes are enough for a lightly browned top while the sauce stays creamy underneath.
If the center still feels firm when tested with a thin knife, give the casserole a little more time within the final uncovered stage. Potato size and slice thickness can vary, so tenderness is the best guide.
For another cozy, uncomplicated accompaniment, pair this casserole with a slice of our easy beer bread. Its tender crumb is useful for catching any creamy sauce left on the plate.
What to Serve with Two-Potato Scallops
This casserole is rich enough to stand beside simple roasted or grilled proteins. Serve it with roast chicken, baked ham, pork chops, or a plain roasted beef dish when you want the potatoes to provide the creamy side component.
A crisp green salad, steamed broccoli, or lightly dressed green beans adds freshness and color. Because the casserole already contains a creamy sauce and cheddar, bright vegetables help balance the meal.
For a seafood dinner, keep the rest of the plate light and let the potatoes provide comfort. A serving of our easy salmon pasta can inspire another satisfying menu, though a simple baked fish would also work beautifully here.
This dish is also a natural choice for holiday gatherings and family suppers. Its six-serving yield makes it large enough for a small group without requiring a deep roasting pan or a complicated sauce.
Storage, Reheating, and Serving
Allow leftovers to cool, then cover and refrigerate them promptly. Store portions in an airtight container or cover the baking dish well, and use your best food-safety judgment when deciding how long to keep them.
Reheat servings until hot throughout. A covered oven-safe dish helps prevent the potato edges from drying, while a short uncovered finish can restore some of the cheddar topping’s pleasant texture.
Letting the casserole stand for about 5 minutes after its initial bake is part of the serving process, not an optional extra. The sauce is very hot when it leaves the oven, and the brief rest makes the portions easier to handle.
Leftovers can be served as a side again or paired with a simple salad for a comforting lunch. For dessert after a potato-centered dinner, our apple cream cheese Danish offers a sweet finish, while an easy peach cake is another lovely choice in warmer months.
Read More: Easy peach cake
Easy Two-Potato Scallop
Ingredients
Method
- Heat the oven to 375°F and grease a 2-quart baking dish with cooking spray or a little butter.
- Arrange half of the sliced white potatoes, sweet potatoes, and chopped onion in the prepared dish. Repeat with the remaining vegetables.
- In a bowl, stir together the undiluted condensed cream of potato soup, milk, salt, and pepper. Pour the mixture evenly over the layered vegetables.
- Cover the dish and bake for about 45 minutes, allowing the trapped steam to soften the potato slices.
- Uncover the casserole, sprinkle the cheddar cheese evenly over the top, and bake for another 15 to 20 minutes, or until the potatoes are tender and the top is lightly browned.
- Let the casserole stand for about 5 minutes before serving so the creamy sauce can settle slightly.
Notes
Final Thoughts
This Easy Two-Potato Scallop Recipe brings together familiar white potatoes and sweet potatoes in one creamy, golden casserole. The method is simple: layer the vegetables, pour over the seasoned potato soup mixture, bake covered for about 45 minutes, then add cheddar and finish uncovered for 15 to 20 minutes.
For the best result, focus on thin, even slices and respect the covered baking time. After a 5-minute rest, you will have a tender, savory-sweet side dish with a lightly browned cheese topping and enough servings for a family-style meal.
Make it for a Sunday dinner, a holiday table, or an ordinary evening that needs something warm and satisfying. Its balanced mix of textures and colors makes this an easy favorite in the “Best” side-dish category.