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A flat ground-beef meatloaf forms the base of this mashed potato bake, with sour cream, cheddar and cooked turkey bacon above it. Baking the meat layer first makes it possible to remove excess fat before adding the potatoes. Measure the prepared mash by volume rather than relying on a count of potatoes.
Use three measured cups of prepared mashed potatoes. Potato sizes vary, so the approximate count in the source formula is not a reliable yield. Mix in the separate half cup of sour cream and warm the topping before spreading if the potatoes started refrigerated.
Ingredient amounts and preparation
- Set out: 2 pounds ground beef
- Set out: 1 cup plain breadcrumbs
- Set out: 2 large eggs
- Set out: 1/2 cup whole milk
- Set out: 1 teaspoon garlic powder
- Set out: 1 teaspoon onion powder; 1/2 teaspoon salt
- Set out: 1/2 teaspoon ground black pepper
- Set out: 3 cups prepared mashed potatoes, measured after cooking and mashing
- Set out: 1/2 cup sour cream
- Set out: 1 cup shredded cheddar cheese
- Set out: 1/2 cup green onions, finely chopped
- Set out: 1/2 cup cooked, crumbled turkey bacon; 1 tablespoon olive oil (for greasing pan)
Cooking sequence and doneness
- Stage 1
- Heat the oven to 375°F and grease a 9-by-13-inch baking dish with the listed olive oil.
- Stage 2
- Mix breadcrumbs, eggs, milk and the beef seasonings in a bowl.
- Stage 3
- Gently combine with the ground beef and press into an even layer in the dish.
- Stage 4
- Bake for about twenty-five to thirty minutes, continuing until the meat reaches 160°F. Carefully remove excess rendered fat with a spoon or by controlled draining into a heatproof container.
- Stage 5
- Measure three cups of prepared mashed potatoes and fold in the sour cream.
- Stage 6
- Warm refrigerated potatoes before spreading them over the fully cooked meat.
- Stage 7
- Scatter cheddar and already cooked crumbled turkey bacon over the potato layer.
- Stage 8
- Return to the oven for about fifteen to twenty minutes, checking the center reaches 165°F. Add the chopped green onions and rest briefly before serving.
The ground beef releases liquid and fat as it cooks. A preliminary bake lets you carefully spoon or drain excess fat away, leaving a more stable base for the potatoes. Protect your hands and use a heatproof container; do not tip a heavy hot dish over the sink.
How firmly should the beef be mixed?
Combine the breadcrumbs, milk, eggs and seasonings before working them gently into the beef. Stop once they are distributed. Press to an even depth in the dish without kneading it into a tight paste.
How do you check doneness beneath the potatoes?
Check the meat before covering it, then check the center of the assembled bake after its second oven stage. The beef should reach 160°F and the assembled casserole 165°F. A melted cheese surface gives no useful reading of the lower layer.
Can this be prepared ahead?
Keep uncooked meat and prepared topping covered in separate refrigerator containers. Cook the meat fully when ready to assemble; do not partially bake it and refrigerate it to finish later. Add the green onions near serving if a fresher texture is preferred.
Storage and serving later
Refrigerate perishable leftovers promptly in shallow containers at 40°F or below; do not wait for a large hot batch to cool completely on the counter. University of Illinois Extension’s leftover guidance gives a three-to-four-day refrigerated window and 165°F for reheating foods served hot. Keep cold salads and toppings chilled, and follow shorter product-label limits where applicable.
Related recipe choices
For another complete recipe, see Old-School Cheese and Onion Pie or Cheesy Beef and Shells Casserole with Tomato Soup. Each has its own ingredient quantities and cooking sequence; keep those measurements separate when choosing a meal.
USDA’s temperature guidance specifies 160°F for ground beef. Thermometer placement guidance explains checking the thick center rather than relying on surface color.
Common Questions About This Recipe
- Which potato quantity matters?
Use three measured cups of prepared mashed potatoes. Potato sizes vary, so the approximate count in the source formula is not a reliable yield.
- Why bake the meat before topping it?
The ground beef releases liquid and fat as it cooks. A preliminary bake lets you carefully spoon or drain excess fat away, leaving a more stable base for the potatoes.
- How firmly should the beef be mixed?
Combine the breadcrumbs, milk, eggs and seasonings before working them gently into the beef. Stop once they are distributed.
- How do you check doneness beneath the potatoes?
Check the meat before covering it, then check the center of the assembled bake after its second oven stage. The beef should reach 160°F and the assembled casserole 165°F.
- Can this be prepared ahead?
Keep uncooked meat and prepared topping covered in separate refrigerator containers. Cook the meat fully when ready to assemble; do not partially bake it and refrigerate it to finish later.