Slice meats and cheeses and arrange over a large wooden cutting board. Scoop obatzda (if using) and slice or scoop lebewerswurst. Scoop trout dip (if using) onto board (perhaps in a small bowl).
Place arugula in a shallow plate and then onto board. Arrange rye bread pieces and pretzels on board or serve nearby. Arrange tomato slices on board. Serve mustard in small dipping bowls.