1.  Mushroom Burger:  Sauteed mushrooms, provolone and sour cream on a whole wheat bun
2.  Greek Burger:  Provolone cheese, lettuce tomato slices and avocado
3. Mexican Burger:  Salsa, avocado, bacon, cucumber slices, Monterey Jack cheese
4.  Healthy burger:  Sprouts, cheddar cheese, tomato, avocado on whole wheat bun
5.  California  or Southwest Burger:  Monterey Jack cheese, slices of bacon topped with ranch dressing
6.  Pesto Burger:  Basil Pesto and Mozzarella Cheese
7.  Island Burger:  Teriyaki madness sauce (this is a bottled franchise sauce so you might want to substitute this recipe from All Recipes.com http://allrecipes.com/recipe/teriyaki-sauce-and-marinade/ if you don't want to buy online), grilled pineapple, cheddar cheese, lettuce, tomato and mayo 8.  Emily's Burger:  Pepperoni, mozzarella, tomato, red onion, lettuce, tomato, basil olive mayo (1/2 cup mayo, 1/4 cup diced black olives and 1/2 TBSN dried basil)
9.  Breakfast or brunch burger:  Fried egg, colby cheese, lettuce and tomato
10.  Red Onion Burger:  Carmelized red onions (use apple cider vinegar instead of white wine vinegar), mozzarella, lettuce and mayo.
Learn how to make carmelized onions.  They make everything better!!

Carmelized onions Allrecipes.com/howto/caramelizing-onions-step-by-step/
Carmelized onions http://www.taste.com. caramelised+...