Clean and wash the rocket, drain well and cut into strips, except for 1 leaf. Drain corn and mix with rocket and lemon juice. Season with salt and pepper. Wash the chives, dab dry and cut into fine rolls, except for a little garnish.
Spread wholemeal bread with half-fat and cover with ham. Arrange ham bread and corn salad on a plate. Sprinkle with chives and rocket and garnish.