In a medium to large frying pan or skillet over medium-high heat, melt the butter. Add the onion and saute for 2 minutes or until translucent.
Add the potatoes, cabbage, carrots, corned beef, and sprinkle with salt and pepper. Press mixture down with your spatula and let fry approximately 8 to 10 minutes to allow browning. Turn mixture over and press down with your spatula again. Allow to fry an additional 6 to 8 more minutes or until until the edges are a golden brown.
Remove from heat, season with additional salt and pepper (if desired), and serve.
Excellent served with Irish Soda Bread.
Make 4 wells in the mixture and crack an egg in each well, cover pan, and cook gently until the eggs are set.
You could also poach or fry the eggs and then place on top of the mixture.
Excellent served with bacon and eggs or as a light supper dish.
Corned Beef Bubble and Squeak Recipe: https://whatscookingamerica.net/beef/corned-beef-bubblesqueak.htm