Beef and Potato Baked Casserole
Layers of savory ground beef, creamy mashed potatoes, and melted cheddar cheese baked until golden and bubbling, ideal for weeknight dinners. This american-inspired one pot ready in about 55 minutes pairs ground beef, medium onion, garlic for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 400 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 1 lb ground beef
- 1 medium onion
- 2 cloves garlic
- 4 cups mashed potatoes
- 1 cup cheddar cheese
- 1/2 cup milk
- 1/4 cup butter
- 1 tsp dried rosemary
- to taste salt
- to taste black pepper
Instructions
- Step 1: Preheat oven to 375°F (190°C). In a skillet over medium heat, cook 1 lb ground beef, 1 medium onion finely chopped, and 2 cloves garlic minced until beef is browned and onion is translucent, about 8 minutes; drain excess fat and season with salt and pepper.
- Step 2: In a bowl, mix 4 cups mashed potatoes, 1/2 cup milk, and 1/4 cup butter until smooth. Stir in 1 tsp dried rosemary and season with salt and pepper.
- Step 3: Spread half of the mashed potato mixture (2 cups) in a greased 9x13-inch baking dish. Top with the cooked beef mixture, then cover with the remaining mashed potatoes (2 cups).
- Step 4: Sprinkle 1 cup shredded cheddar cheese evenly over the top. Bake for 25-30 minutes until the cheese is melted and edges are golden.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Beef and Potato Baked Casserole take to make?
Total time is about 55 minutes (25 min prep + 30 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover Beef and Potato Baked Casserole?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep ground beef from drying out.
Can I substitute ingredients in Beef and Potato Baked Casserole?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Beef and Potato Baked Casserole for a different number of people?
The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
What goes well with Beef and Potato Baked Casserole?
American one pot like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.
What others are saying
- ★★★★★
Perfect for a weeknight dinner. Easy and delicious!
- ★★★★★
Loved the comfort food! My family devoured it.
- ★★★★☆
Tasty, but potatoes were a bit soggy. Would add more beef next time.
