Wash the meat, dab dry and cut into cubes of about 3 cm. Peel and quarter onions. Clean, wash and cut the peppers into large pieces. Mix oil and shashliksauce.
Put the meat, peppers and onions alternately on skewers. Season with a little salt and pepper. Grill on the hot grill for 15-20 minutes. Spread several times with shashlik sauce.