One 12-ounce package thick-cut bacon 4 burger buns  1 1/2 pounds ground beef (preferably 80/20)  1 tablespoon Worcestershire sauce  Kosher salt and freshly ground black pepper  Vegetable oil, for oiling grill grates 4 slices (1/4 pound) American cheese 1/2 cup store-bought ranch dressing  4 leaves Bibb lettuce  2 Roma tomatoes, sliced  1 small red onion, thinly sliced