Heat the oil and add the chopped onion, cooking until soft (about 5 minutes). Add the ground beef or turkey and garlic, and cook until the meat is no longer pink, stirring periodically. Add the broth, raisins, olives, capers, and tomato paste. Stir and bring to a simmer, then cover and cook 25 minutes or so.
Serve over steamed white rice.
Notes
For the tomato paste, whenever I open a can of tomato paste and need less than the whole can, I freeze tablespoon sized portions on waxed paper, so I just pulled one of those out. It's a lot cheaper than the fancy tubes of tomato paste!