Heat a grill pan. Brush the bread on both sides with the 2 tablespoons of olive oil and toast in the grill pan over moderately high heat until golden and crisp on both sides. Transfer each piece of toast to a small plate. Wrap each mozzarella ball in a slice of speck. Heat the remaining 1/2 cup of olive oil in a medium nonstick skillet. Fry the speck-wrapped mozzarella over moderately high heat until golden and just melted, turning once, about 2 minutes. Set 2 speck-wrapped mozzarella balls on each toast, spoon some of the olive spread on top and serve.