Drain the corned beef hash if needed
Heat a skillet over medium heat
Add a small amount of oil or butter if the pan is not nonstick
Spread the hash evenly in the skillet
Cook without stirring for 4 to 5 minutes
Flip or stir the hash
Cook for another 4 to 5 minutes until browned and heated through
Break up large pieces with a spatula if needed
Cook until the internal temperature reaches 165°F if using leftovers
Serve hot