In a bowl mix together garlic powder, onion powder, Italian seasoning, ½ tsp salt and ¼ tsp pepper.
Dab chicken dry with paper towels then sprinkle mixture evenly over both sides of each chicken cutlet. Heat olive oil in a 12-inch skillet over medium-high heat.
Add chicken (cover pan with a splatter screen if you have one) and cook until golden brown on bottom, about 4 - 6 minutes.
Rotate and cook opposite side until chicken has nearly cooked though (about 160 in center), reducing burner temperature just slightly if needed, about 4 - 5 minutes.
Add two slices of mozzarella to the top each cutlet, followed by one avocado slice, and 1 - 2 tomato slices.
Cover pan with lid, return to heat and allow to cook 1 - 2 minutes longer until cheese has melted and chicken registers 165 in center.
Sprinkle chicken with pepper, drizzle with balsamic glaze and sprinkle with fresh basil. Serve warm.
