Toast the bread. While the bread is toasting, mash the avocado in a bowl.
Spread the mashed avocado over the toast. Top each slice with tomatoes, mozzarella, and basil leaves, then drizzle with balsamic glaze. Season with salt and pepper to taste.
Fill a glass with ice. Stir in the coffee. Prepare it to your liking with your choice of creamer and sweetener.