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Cheesy Ground Beef & Potato Casserole (One-Pan Dinner!)

Cheesy Ground Beef & Potato Casserole

This comforting casserole combines ground beef, potatoes, and cheese in a delicious one-pan dinner that's perfect for busy weeknights. Using simple pantry ingredients like russet potatoes, lean ground beef, and cheddar cheese, it creates a hearty meal with minimal cleanup. The creamy mushroom sauce brings everything together for a satisfying homestyle dish.
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Prep Time 15 minutes
Cook Time 1 hour
Total Time 1 hour 15 minutes
Servings: 4 servings
Calories: 450
Ingredients Equipment Method Notes

Ingredients
  

Ingredients
  • 2 pounds russet potatoes (peeled & diced)
  • 1 pound lean ground beef
  • 1 medium onion (chopped)
  • 4 cloves garlic (minced)
  • 1 cup frozen mixed vegetables
  • Salt & pepper to taste
  • 1 (10.5 ounce) can condensed cream of mushroom soup
  • 1 cup milk (2% recommended)
  • 1/2 cup sour cream
  • 1 tablespoon Worcestershire sauce
  • 1 teaspoon Italian seasoning
  • 2 cups shredded cheddar cheese (divided)

Equipment

  • 9x13 casserole dish
  • skillet
  • medium prep bowl

Method
 

Instructions
  1. Preheat your oven to 400F and move the rack to the middle position.
  2. Add the potatoes to a greased 9x13 casserole dish.
  3. Add the beef and onions to a skillet and cook, breaking the meat up with your spoon as you go along, until browned (about 8-10 minutes). Drain excess fat if needed.
  4. To the skillet, add in the garlic and frozen mixed vegetables and cook for another 2-3 minutes, stirring often. Season with some salt & pepper and transfer the mixture to the casserole dish.
  5. In a medium prep bowl, mix the cream of mushroom soup, milk, sour cream, Worcestershire sauce, Italian seasoning, and half of the cheddar cheese together.
  6. Pour the sauce mixture over top of the beef and potatoes, then stir and arrange it in an even layer.
  7. Cover the casserole tightly with foil and bake for 45 minutes.
  8. Take the foil off, sprinkle the remaining cheese on top, and bake uncovered for another 10-15 minutes or until the cheese has melted and the potatoes are tender.
  9. Let it sit for 5-10 minutes prior to serving, then season with extra salt & pepper as needed.

Notes

Dice potatoes evenly for consistent cooking. Let casserole rest 5-10 minutes before serving to allow flavors to meld and make serving easier. Can substitute Yukon Gold potatoes or use different cheese blends for variation.