1 half avocado, peeled, sliced
1 half ripe heirloom tomato, sliced
A pinch of chopped fresh chives or sliced green onions
Juice from one slice of lemon
A pinch of coarse salt (fleur de sel if you can get it)

Arrange slices of avocado and tomato on a plate. Sprinkle with chives, lemon juice, and coarse salt.