Preheat the oven to 400°F (205°C).
Prep the ingredients per the instructions above.
Prep bruschetta: mix all of the ingredients (except bread) in a bowl. Season with salt and pepper to taste. Set aside.
Prep and toast bread: Place sliced bread on a baking sheet, drizzle with oil, and bake in the oven until golden brown.
Mix together the ground beef, steak seasoning, and Worcestershire sauce. Form into even patties. Transfer to a plate, cover with plastic wrap, and reserve in the fridge until you are ready to cook (see note).
Lightly toast the buns.
Heat a grill or grill pan over medium heat.
Cook the burger patties: Add the patties to the grill and cook on both sides, getting a nice crusty char to the desired doneness (see note) using a thermometer. When the burger is 3/4 of the way cooked to your liking, add the cheese and cook until melted.
Mix together the ingredients for the spritzer. Serve over ice if desired.
Finish bruschetta: Spoon the bruschetta mixture onto the bread slices.
Compose the burger: Spread your favorite condiments on the inside of the bun. Place the patty on the bun with lettuce, tomato, and onion.
Serve the burger with bruschetta and spritzer.