Artichokes stuffed with Tuna Fish and Celery Salad

Description
This recipe is for 4 serves.

Ingredients

 * 8 large artichokes
 * 1 lemon, halved, and one-half cut into slices
 * 2 tablespoons salt
 * 6½ ounces water-packed tuna, well drained
 * 1 hard-cooked egg, coarsely chopped
 * 2 tablespoons finely chopped onion
 * 3 tablespoons finely diced celery
 * ½ cup mayonnaise, preferably homemade
 * freshly ground black pepper, to taste
 * 8 lettuce leaves, patted dry
 * 1 ripe tomato, cut into 8 wedges
 * 2 tablespoons finely minced fresh parsley

Directions

 * 1) Using a sharp stainless-steel knife, trim off the artichoke stems and slice 1 inch off the top.
 * 2) Rub the cuts with the lemon half.
 * 3) Place the artichokes, stem side down, in a large nonreactive pot and cover with water.
 * 4) Add the salt and 4 lemon slices.
 * 5) Bring to a boil, reduce the heat, and boil gently uncovered until tender, 35 to 45 minutes.
 * 6) To test doneness, pull a leaf out; if it comes out easily without resistance, the artichoke is done.
 * 7) Drain the artichokes upside down in a colander or on a rack.
 * 8) When cool enough to handle, discard all the green leaves, scraping off and saving all the edible parts in a small bowl.
 * 9) Scoop out the fuzzy choke with a small spoon.
 * 10) Trim the bottom to a nice round shape.
 * 11) Combine the tuna, onion, celery, and reserved artichoke pieces in a medium bowl.
 * 12) Add the mayonnaise and black pepper; toss gently with a fork.
 * 13) Adjust the seasoning.
 * 14) Stuff the artichoke bottoms with the tuna and celery salad.
 * 15) Arrange the lettuce on a serving platter.
 * 16) Place the stuffed artichokes on top of the lettuce, and garnish with the tomato wedges and parsley.