Add the onions and radishes. Saute on medium heat for about 5 minutes, until softened with slightly browned edges.
Add salt, pepper, garlic powder, and dried spices or fresh herbs. Mix well.
Add the canned corned beef, using the spatula to break it down in the pan. Mix with the radishes and onions.
Spread the keto corned beef hash across the bottom of the pan and pat it into a patty. Allow to brown for 1 minute, then turn. This will produce crispy edges.