Prepare ahead
Steps 1 and 2 can be done in advance with the bruschette broiled just before serving.
1. Preheat the broiler and position the rack 6in (15cm) from the heat. Broil the bread slices until toasted golden on both sides. Rub 1 side of each slice with the garlic clove. Brush the garlic side of each slice with about 2 tsp olive oil.
2. For each bruschetta, spread the toasted bread with about 2 tsp marinara sauce and sprinkle with salt and pepper to taste. Put 1 slice of mozzarella on each, sprinkle with the herbs, and top with 2 pieces of anchovy in a criss-cross pattern.
3. Broil for 2–3 minutes, or until the mozzarella has melted. Serve hot, sprinkled with the olives.
Good with a chilled glass of sparkling Prosecco.