Goodness me! What is he serving them? That's a lot of whatever it is. 
Glad you asked.
INGREDIENTS
Potato Salad:
6 potatoes, boiled
2 green onions, chopped
1â„4cup parsley, finely chopped
1â„2cup salad dressing
salt
Salad Ingredients:
1 lettuce, entire bunch
3 cups potato salad (see above)
12 watercress leaves (optional)
2 tomatoes, medium and cut into wedges
1 cucumber, cut lengthwise into 8 fingers
1 avocado, cut into wedges
8 ounces crumbled feta cheese
1 green pepper, cut into 8 strips
4 slices canned beets (optional)
4 shrimp, peeled and cooked
4 anchovy fillets
12 black olives (greek style preferred)
4 radishes, sliced
4 green onions, whole
1â„2cup distilled white vinegar
1â„4cup olive oil
1â„4cup salad oil (blend both oils together)
DIRECTIONS
Line a large platter with outside lettuce leaves. Place 3 cups of the potato salad in a mound in the center of the platter. Cover with the remaining lettuce which has been shredded.
Arrange the watercress on top of this.
Place the tomato wedges around the outer edge of the salad with a few on the top, and place the cucumber wedges in between the tomatoes, making a solid base of the salad.
Place the avocado slices around the outside.
Place crumbled feta on top of the salad, with the green papper slices over all.
On the very top, place the sliced beets with a shrimp on each beet slice and an anchovy fillet on top of the shrimp.
The olives, peppers and green onions can be arranged as desired.
The entire salad is then sprinkled with the vinegar and then with the oil.
Sprinkle the oregano over all and serve at once. Serve with toasted garlic bread.
https://www.food.com/recipe/louis-pappas-famous-greek-salad-461490 
