Linda’s Mexican Scalloped Potatoes is a hearty 350°F casserole made with six thinly sliced potatoes, seasoned ground beef, onion, creamy mushroom soup, green chiles, milk, and cheddar cheese. The potatoes and beef are layered in a greased 2½- to 3-quart casserole dish, baked covered until tender, then finished uncovered with melted cheese.
This comforting potato casserole brings together creamy, savory, gently spicy, and cheesy flavors in every forkful. It takes about 20 minutes to prepare and 1 hour 15 minutes to 1 hour 30 minutes to cook, making it a satisfying family dinner or potluck side dish; although it appears under the supplied fruit category, this recipe is a savory potato entrée.
Jump to RecipeWhy You’ll Love This Recipe
Linda’s Mexican Scalloped Potatoes is the kind of casserole that makes a busy evening feel wonderfully manageable. The ingredient list is short, the preparation is straightforward, and the oven does most of the work while the creamy sauce gently cooks the potatoes.
Every serving offers tender potato layers, savory ground beef, soft onion, mild green chile flavor, and a blanket of cheddar cheese. The green chiles add a pleasant peppery note without overwhelming the comforting mushroom sauce.
This recipe is also practical for family meals, casual gatherings, and potlucks. It can be served as the main dish with a crisp salad, or placed beside roasted vegetables and fresh bread for a more generous spread.
Ingredients You’ll Need
The potatoes are the foundation of this casserole, so choose six medium potatoes that are firm and free of soft spots. Russet or similar baking potatoes work well, while the most important detail is slicing them evenly at about 1/8 inch thick.
- Potatoes: Six medium potatoes, peeled and thinly sliced.
- Ground beef: One pound, browned with one small chopped onion.
- Creamy sauce: One 10¾-ounce can of condensed cream of mushroom soup combined with one cup of milk.
- Green chiles: One 4-ounce can of chopped green chiles, used undrained for flavor and moisture.
- Cheddar: One cup of shredded cheddar cheese for the final golden topping.
- Seasoning: Salt and black pepper to taste.
Because the soup, cheese, and beef already bring plenty of savory character, season the layers lightly. You can always add more at the table, but heavy seasoning may make the finished casserole taste too salty.
How to Make It Step-by-Step
Step 1: Heat the oven to 350°F (175°C) and grease a 2½- to 3-quart casserole dish. Peel the potatoes, rinse them if needed, and slice them into uniform rounds about 1/8 inch thick so every piece cooks at the same rate.
Step 2: Place the ground beef and chopped onion in a skillet over medium heat. Cook until the beef is browned throughout and the onion is tender, breaking the meat into small crumbles as it cooks, then drain excess fat.
Step 3: Add the condensed cream of mushroom soup, milk, and undrained green chiles to a mixing bowl. Whisk until the soup loosens into a pourable sauce and the chiles are distributed throughout.
Step 4: Arrange a layer of sliced potatoes across the bottom of the greased casserole dish. Add part of the cooked beef and onion mixture, then season lightly with salt and black pepper before beginning the next layer.
Step 5: Continue alternating potatoes and beef until everything is arranged in the dish. Try to spread the ingredients fairly evenly so each portion receives both tender potatoes and flavorful meat.
Step 6: Pour the mushroom soup mixture slowly over the top, allowing it to move down between the layers. Cover the dish tightly with foil, pressing around the edges to hold in the steam that helps soften the potatoes.
Step 7: Bake the covered casserole for about 1 hour. Test the center with a thin knife; if the potatoes still resist, cover the dish again and continue baking until they are tender.
Step 8: Remove the foil and scatter one cup of shredded cheddar evenly over the casserole. Bake uncovered for another 15 to 20 minutes, until the cheese is melted and lightly browned.
Step 9: Transfer the casserole to a heat-safe surface and let it rest for 5 to 10 minutes. Serve while warm, giving the sauce a moment to settle around the potato layers.
Pro Tips for Tender, Creamy Potatoes
Uniform slices are the most important preparation detail. A mandoline can help create consistent 1/8-inch slices, but a sharp chef’s knife works well when you take your time and keep the rounds as even as possible.
Keep the foil tightly sealed during the first hour of baking. The enclosed steam helps cook the potatoes from the center outward, while uncovering too early can allow moisture to escape before the slices are tender.
- Grease the casserole dish generously so the edges release more easily.
- Drain the beef well, but do not cook it until it becomes dry and hard.
- Use the green chiles undrained, as directed, so their liquid contributes flavor and moisture.
- Spread the cheese close to the edges for golden, bubbly corners.
- Allow the finished dish to rest before cutting or spooning.
If your potato slices are thicker than 1/8 inch, expect the covered baking period to take longer. The knife test is more reliable than the clock because potato size, slice thickness, and casserole depth can vary.
What to Serve with Mexican Scalloped Potatoes
This casserole is rich and filling, so fresh, crisp sides provide a welcome contrast. A green salad with a bright vinaigrette, steamed green beans, or sliced tomatoes can balance the creamy layers without adding much extra work.
For a larger dinner, serve it with roasted vegetables or a simple vegetable soup. Warm rolls or crusty bread are useful for catching the extra sauce, while a spoonful of cool sour cream at the table can complement the gentle chile flavor.
Since the casserole already contains meat and potatoes, it can stand alone as a complete comfort-food meal. For a potluck, place the dish on a heat-safe trivet and serve it soon after its resting period so the cheese stays soft and inviting.
Storage and Reheating
Cool leftovers promptly, then transfer them to a covered container or cover the casserole securely before refrigerating. The potatoes may firm slightly as they chill, but the creamy sauce keeps the leftovers satisfying.
Reheat individual portions until hot throughout, using a microwave or a covered oven-safe dish. For a larger amount, warm the casserole covered in a moderate oven until heated through, then uncover briefly if you want the cheese topping to regain some of its baked texture.
Try to avoid leaving the casserole uncovered in the refrigerator, since the potato edges and cheese can dry out. When reheating, a cover helps retain moisture and keeps the sauce from becoming thick and stiff.
Linda's Mexican Scalloped Potatoes
Ingredients
Method
- Heat the oven to 350°F (175°C) and grease a 2½- to 3-quart casserole dish. Peel the potatoes and slice them uniformly, about 1/8 inch thick, so they soften evenly.
- Brown the ground beef and chopped onion in a skillet over medium heat until the beef is fully cooked and the onion is tender. Drain off excess fat, then set the beef mixture aside.
- Whisk together the condensed cream of mushroom soup, milk, and undrained chopped green chiles in a bowl. Stir until the mixture is smooth and evenly combined.
- Arrange a layer of sliced potatoes in the prepared casserole dish, followed by part of the beef and onion mixture. Season lightly with salt and black pepper, then repeat the layers until the ingredients are used.
- Pour the soup mixture evenly over the layered potatoes and beef. Cover the casserole tightly with foil so steam remains inside during the main baking period.
- Bake the covered casserole for about 1 hour, checking the potatoes with a thin knife near the center. If the slices are not yet tender, continue covered baking until they can be pierced easily.
- Remove the foil and sprinkle the shredded cheddar cheese evenly over the top. Return the casserole to the oven and bake for another 15 to 20 minutes, until the cheese has melted and is lightly browned.
- Let the casserole rest for 5 to 10 minutes before serving. This brief rest allows the creamy sauce to settle and makes the layers easier to spoon onto plates.
Notes
Final Thoughts
Linda’s Mexican Scalloped Potatoes earns its place in the comfort-food rotation with a dependable combination of creamy potatoes, browned beef, onion, green chiles, and cheddar. The covered baking method produces tender layers, while the final uncovered minutes create the lightly browned cheese topping everyone looks forward to.
Remember to slice the potatoes evenly, keep the foil on for most of the cooking time, and rest the casserole for 5 to 10 minutes before serving. With those simple details in place, this savory recipe delivers a warm, hearty dish that is easy enough for a weeknight and welcoming enough for a shared table.
