Heat oven to 400°. Place rolls on a baking sheet and bake 10 to 12 minutes, following package directions. Allow to cool.Advertisement
Heat stovetop grill to medium-high. Brush tomato slices with olive oil and grill 2 minutes. Turn and grill 1 additional minute.
Split rolls horizontally and spread bottom half of each with 1 tsp pesto. Layer each with 1 tomato slice, 2 basil leaves, 1 mozzarella slice and 2 avocado slices. Top with remaining roll halves.