01 -
Heat olive oil in a large skillet over medium heat. Add chopped onion and minced garlic and sauté until aromatic and translucent.
02 -
Add ground beef to the skillet and cook until evenly browned, breaking apart with a wooden spoon. Drain off excess fat.
03 -
Transfer the cooked beef mixture to a slow cooker. Add condensed cream of mushroom soup, milk, salt, black pepper, and Worcestershire sauce. Stir thoroughly to combine.
04 -
Arrange a layer of thinly sliced potatoes over the beef mixture in the slow cooker.
05 -
Continue alternating layers of beef mixture and sliced potatoes until all ingredients are assembled.
06 -
Cover and cook on low setting for 6 to 7 hours, or until the potatoes are tender when pierced with a fork.
07 -
In the last 30 minutes of cooking, sprinkle shredded cheddar cheese evenly over the top. Re-cover and cook until the cheese is fully melted.
08 -
Serve hot. Garnish with fresh chopped parsley if preferred.