Heat the oil. Brown the turkey for 35 minutes, covered, reserving the marinade juices. Add tomato paste, remaining onion, thyme, and pepper slices to reserved marinade juices and pour over the turkey once it’s browned. Lower heat and simmer for 35 more minutes, covered, stirring occasionally so sauce does not thicken too much. Taste and adjust salt. Serve with rice, boiled sweet potato, or plantains.