Mash the avocado and pack it chilled with a cover pressed against the surface. Finish by folding in the diced tomato just before serving, so you need a spoon and a bowl rather than a cutting board.
Mash the avocado and pack it chilled with a cover pressed against the surface. Finish by folding in the diced tomato just before serving, so you need a spoon and a bowl rather than a cutting board.