In a large mixing bowl combine the first six ingredients and shape into 6 patties. Patties can be cooked on an outdoor grill, griddle, skillet, or oven broiler. Cook patties over medium heat for about about 12 minutes or until there is no longer any pink color.
While the burgers are cooking, brush olive oil over one side of bread slices and either broil in the oven, place on a griddle or skillet, and cook until golden and crispy. Add favorite condiments to the burgers and serve immediately.