Bread slices may be toasted up to 1 day ahead. Store in an airtight container at room temperature.
Prepare as above, except decrease tomatoes to 1 cup. Add 6 ounces lump crabmeat or 6 ounces peeled, deveined, cooked shrimp, coarsely chopped; and 1 tablespoon snipped fresh dillweed to the tomato mixture.
White Bean Bruschetta:
Prepare as above, except substitute snipped fresh thyme for the chives, snipped fresh oregano for the basil, and decrease tomatoes to 1 cup. Add one 15-ounce can cannellini beans, rinsed and drained, to the tomato mixture. Drizzle assembled toasts with an additional 2 tablespoons olive oil. Garnish with additional snipped fresh thyme or oregano.