Bake pastry shells according to directions, but undercook slightly so shells are light brown. Cut off tops and scoop out middle dough, being careful not to make any holes in shells.
Place shells on large baking sheet.
Carefully crack 1 egg into each shell. Bake at 325 o until egg is set, about 15 to 20 minutes. Remove from oven. To serve, place heated ham or Canadian bacon on plate and top with cooked shell. Spoon hollandaise sauce over egg baskets.