Cut the beef into similar-sized thin strips pieces. Preheat a skillet over medium-high heat and add the beef into the pan with oil.
Grate or thinly slice the carrots and cabbage. Dice the onions into small pieces.
Add the onions to the skillet and cook them until golden. Next, add the carrots.
Switch the heat to low and add the cabbage. Cook it down for about 20 minutes. Season with salt and pepper.
Add the tomato paste and butter and stir to combine. Cook for another 10-15 minutes. Serve immediately and enjoy as-is or alongside your favorite grain!