Add a little bit of cooking lard or ghee to a heavy skillet (cast iron preferred) set over medium high heat. When the fat is nice and hot, add onion, garlic and salt and pepper and cook until fragrant and softened, about 2-3 minutes.
Add ground beef and continue cooking until the beef is completely brown. Add kale, endives, oregano, savory and parsley and stir well. Set heat to medium and continue cooking until kale is dark green and wilted, about 3-4 minutes.
Kill the heat and stir in half the goat cheese, if using.
Sprinkle the olives on top, followed by the rest of the goat cheese.
Set in the oven on broil for a few minutes, until the olives start to wrinkle slightly and the cheese takes a light golden coloration.
Serve piping hot and drizzle generously with extra-virgin olive oil. For a bit of an added kick, sprinkle a little bit of hot pepper flakes all over the top.