METHOD To make vinaigrette, whisk together 1/2 cup vinegar, garlic, salt and pepper; whisk in oil. Reserve. Combine Onion, tomato and remaining 1/4 cup vinegar; reserve. JUST BEFORE SERVICE Dice avocado; fold avocado into Onion mixture. PER ORDER Brush 1 round of bread with 1 tablespoon vinaigrette. Arrange 1 or 2 leaves romaine, depending on size, in center of bread. Top with 1/2 cup avocado salad; garnish with 1/2 ounce Cheese.