Wash tongue and put into a large saucepan.
Add water to cover and remaining ingredients.
Cover and simmer about 2 hours, or until tongue is tender.
Cool tongue, then remove skin; cut away roots and gristle.
Slice the tongue diagonally and against the grain.
Arrange slices on a platter.
Garnish with sliced hard cooked eggs, pickles, avocado wedges, and sliced tomatoes.