In a medium-sized bowl, combine all the bruschetta ingredients, except the reduction, and set aside.
Combine the mayonnaise, bread crumbs, soup mix, basil, oregano, garlic powder and ground beef in a large bowl and mix by hand until thoroughly incorporated. Split the mixture into 8 balls and shape into patties.
Prepare a grill at high heat, brush the grate down with oil and grill each burger for 3 minutes on one side before flipping, then another 3 minutes for medium rare, and around 6-8 minutes for well done.
Place each burger on a ciabatta bun, top with a heaping ½ cup of the bruschetta mixture, and drizzle with 2 tablespoons of the balsamic reduction. Serve immediately.