Dice the meat. Shred the lettuce finely. Stamp out star-shaped pieces of egg white and beetroot. Mix the meat and chopped egg yolks and remains of whites. Arrange meat, lettuce and mayonnaise in alternate layers in a salad bowl, seasoning each layer, and pile in pyramid shape. Cover the surface with a thin layer of mayonnaise sauce. Garnish with the stars of beetroot and egg white.