Prepare all the ingredients. Cut the onion into half rings, add vinegar, vegetable oil, sugar, salt and pepper. Mix well, leave to marinate for 15-20 minutes. Meanwhile, grate cheese and eggs, cut cucumbers and meat into strips (instead of beef, you can take pork or chicken). Mix the meat with mayonnaise to taste and put the first layer on the dish. Pickled onions are on it. Next - cucumbers. Make a mayonnaise mesh. Lubricate the next layer with egg, mayonnaise mesh. The final layer is cheese. If desired, decorate the salad. Let it brew for a couple of hours in the refrigerator. Enjoy your meal!