Combine bread, onion, cilantro, turkey, sour cream, chutney, mustard, chili powder, egg and salt. Shape into 4 firmly packed 5-inch patties and wrap with bacon; secure with a toothpick. Combine mayonnaise and adobe sauce in separate bowl.
Grill burgers until firm and cooked through. Toast buns and top with burger and tomato. Spread mayonnaise sauce on bun. Serves 4.