Chunky Guacamole

In a medium bowl, mix:
1 ripe avocado, chopped
1 small tomato, seeded and chopped
1 shallot, minced
1 clove garlic, peeled and minced
the juice of 1 lime
1/2 tsp coarse salt
1/4 tsp ground pepper
a drizzle of veggie oil (optional, I didn't)