If you are using wooden skewers, soak 3 to 5 wooden skewers in water for 20 minutes.
Preheat the oven on broil. Move the oven rack about 6 inches from the top of the oven. Cube the beef, place it in a bowl and toss with the olive oil, salt and pepper (and marinade if desired).
Assemble the kebabs and place them on a baking sheet. Slide them into the broiler and brown for about 3 minutes. Turn them to brown for another 3 minutes on each side. Cook until they reach 135 F for medium-rare.Enjoy Broiled Beef Kebabs!