01 -
Sauté ground beef with chopped onion in a skillet over medium heat until the beef is fully browned with no pink remaining, about 5 to 7 minutes. Drain any excess fat to reduce greasiness.
02 -
Rinse potatoes thoroughly and slice them into uniform pieces, approximately 3 millimetres thick, ensuring even cooking.
03 -
Arrange half of the sliced potatoes at the base of the slow cooker, followed by half of the cooked beef and onion mixture and a portion of shredded cheddar cheese.
04 -
Layer the remaining potatoes, then add the rest of the beef and onion mixture and another portion of cheddar cheese, reserving some cheese for finishing.
05 -
In a bowl, whisk together cream of mushroom soup, milk, garlic powder, salt, and black pepper until smooth. Evenly pour this mixture over the layered ingredients in the slow cooker.
06 -
Cover and cook on low setting for 6 to 8 hours, until the potatoes are tender and the cheese has melted and become bubbly.
07 -
Approximately 15 minutes prior to serving, sprinkle remaining cheddar cheese over the top. Cover and allow cheese to melt. Finish with fresh parsley or chopped chives if desired.