Start by cutting your beef into 1 to 1½ inch squares and repeat the process with vegetables.
Mix garlic, cumin, thyme, oregano, nutmeg, allspice, black pepper, pepper flakes, soy sauce, and olive oil. Reserve a tablespoon for basting.
Add beef to the mixture; thoroughly mix. Add parsley to the marinated steak. Do the same for the vegetables. Let it marinate for 30 mins.
Grill for 4-5 mins per side, basting frequently with reserved marinade.
Cook steak until the center of the steak registers about 140℉ – 145℉ for medium doneness.