Preheat the oven to 350 degrees F. Line a sheet tray with nonstick aluminum foil.
Place the bacon on the lined sheet tray. Sprinkle on the brown sugar and steak seasoning. Bake until crispy, 15 to 20 minutes. Allow to cool enough to touch, then chop into bite-sized pieces. Set aside.
In a medium bowl, whisk together the balsamic and honey, parsley and thyme. Season to taste. Add the onion and tomatoes. Let sit until the tomatoes are slightly darker in color and the onions have softened slightly, 25 to 30 minutes.
Place the wedges on plates. Top each with the onion and tomato mixture and any remaining liquid. Drizzle the wedges with the blue cheese dressing and top with the crumbled blue cheese and the bacon pieces. Serve immediately.