Combine beef, beets, potatoes, onion, salt and pepper in bowl; mix well.
Spoon into greased skillet.
Cook until brown crust forms on bottom, loosening around edge and shaking skillet to prevent over browning. Break up with spatula and brown up top.
*****TIP: I also make with leftover beef from roast or steak and use fresh diced up potato if I have no leftover baked potatoes. I just brown up in a little bit of oil with the beef and chopped onion until tender, then I add the chopped beets. Then heat through.