If you're having a baked chicken breast and avocado sandwich try topping it with the following : honey mustard dressing and salt and pepper with tomato slices. This is basic. Or you could try topping it with Chipotle Mayonnaise, with just a pinch of pepper and some lime juice, and fresh tomato slices or jicama. Or you could try making the avocado into fresh guacamole, using salsa and lime juice, or chopping up tomato, onion, cilantro etc. and making your own guacamole spread and adding shredding lettuce, some shredded mexican cheese, sour cream, some chili powder and black beans, and substitute the bread for a wrap and make a chicken mexican wrap. You could also try topping your chicken avocado sandwich with red onion slices, romaine lettuce, tomato and hummus or red pepper hummus. The possibilities are endless!