Avocado Salmon Sandwich

1 ripe avocado
juice of 1 lemon
6 hamburger buns, split
2 cans (7 3/4 oz each) sockeye salmon, or 1 large can
6 slices process type Swiss cheese
Sesame seeds
Preheat broiler to about 475F. Peel and slice avocado and sprinkle
with part of the lemon juice.
Divide avocado slices evenly over the bottoms of the hamburger buns.
Drain salmon and break into chunks. Divide evenly over avocado slices,
and sprinkle with remaining lemon juice. Top with second halves of the
buns, then with cheese slices. Sprinkle with sesame seeds. Broil
about 8 inches from heat until cheese melts and the sandwiches are
heated through. Garnish with dill pickles.