A local restaurant used to serve a version of this sandwich but when they discontinued it, I experimented and made it better with the addition of dry roasted sesame seeds and using English Muffins instead of whole wheat bread. Garnish each with a black olive, if desired.
Preheat oven to broil.
Place each muffin open-faced on a cookie sheet. Spread each half with mashed avocado; place halves close together. Distributing ingredients evenly, cover each half with sprouts, tomatoes, onion, dressing, sesame seeds and cheese.
Place under broiler for about 5 minutes, or until cheese is melted and bubbly.
Per Serving: 470 calories; protein 15.8g; carbohydrates 37.1g; fat 30.2g; cholesterol 33.7mg; sodium 521.1mg.