In a large skillet, heat 2 tablespoon of olive oil over medium heat. Add the ground beef and salt & pepper, and cook through, making sure to break up the ground beef into crumbles.
Drain and set aside.
Add in another tablespoon of olive oil and cook the onions and garlic for 3-5 minutes till translucent.
Stir in the chili powder and cumin till well combined.
Add in the tomatoes, red wine vinegar and stir till combined.
Add in the raisins and the olives & the brine, stirring till combined.
Lastly, add back in the ground beef and stir till combined. Sprinkle with salt & pepper to taste.
Serve over white or cauliflower rice and plantain chips.