Preheat your oven to 400°F (200°C).
Slice the baguette into 1/2-inch thick slices.
Arrange the slices on a baking sheet and brush both sides with olive oil.
Toast the bread in the preheated oven for about 10 minutes, flipping halfway.
Chop the tomatoes and garlic, and combine in a bowl.
Add salt, pepper, and 2 tablespoons of olive oil to the tomato mixture.
Let the tomato mixture sit for about 10 minutes.
Slice the mozzarella into 1/4-inch rounds.
Assemble the bruschetta by topping each slice of toasted bread with the tomato mixture and a slice of mozzarella.
Return the assembled bruschetta to the oven for about 5 minutes to melt the mozzarella.
Garnish with fresh basil before serving.