Cut a just-ripe avocado in half, take out the pit, and scoop the contents into a bowl. Mash with a fork into chunks, adding kosher salt, freshly ground pepper, and a squirt of fresh lemon juice to taste. Spread thickly on a slice or two of warm, toasted, hearty bread. Top with sliced grape tomatoes, some chopped chives, and another sprinkle of salt and pepper. Serves 1.