Heat 1 Tbsp. olive oil and ˝ tsp garlic in a heavy pan.
Add 4 slices bread and toast both sides over medium to high heat 5 to 7 mins.
Take toast out of pan and put on plate.
Add rest of oil and garlic to pan and repeat the process with remaining slices.
Sprinkle grated cheese on the toasted bread slices.
In the same skillet, put chicken and cook over medium to high heat for 10 minutes. Turn the chicken once.
Spread basil pesto on toast slices; place 3 slices of mozzarella cheese on each slice and top with a tomato slice. Slice chicken pieces in half horizontally. Place these on top of tomato and sprinkle with grated cheese.