Place a large pot over high heat with 2 turns of the pan of EVOO, about 2 tablespoons. When the pan is scorching hot, season the beef with salt and pepper and add it to the pot. Cook the meat, stirring occasionally, until deep golden brown and cooked through, about 5 minutes. Remove from the pot and reserve on a plate.
To the same pan the beef was cooked in, add the remaining EVOO (about 2 turns) along with the potatoes, onion and garlic. Season the veggies with salt and pepper and cook, stirring occasionally, until the onions are tender, 6-7 minutes.