Arrange tortilla chips on baking sheet. Combine tomatoes, onion, garlic, olive oil, salt and pepper; let stand for 10 minutes.
Scatter bruschetta mixture over tortilla chips, leaving any liquid in bottom of bowl. Arrange mozzarella slices over top.
Broil on high for 2 to 3 minutes or until cheese is melted.
Drizzle with balsamic glaze and sprinkle with basil.