Wash watercress and pat dry.
(divide ingredients and layer in two
(12") loaves Italian bread). Snip leaves and
small sprigs from coarse stems to make 1 cup.
Cook onion slices in small amount boiling
salted water until wilted, about 5 min.; drain.
Place tuna with oil in small bowl,
flake tuna and gently mix in mayonnaise.
In small bowl, combine oil, vinegar, salt and pepper.
Slice tomatoes thinly. Cut each roll in half lengthwise
but leaving attached along one side.
Press open and brush cut surfaces with oil and
vinegar mixture. Then, dividing ingredients evenly,
fill each with layers of watercress, tuna mixture,
sliced tomatoes, sliced chicken loaf,
sliced cappicola, onion rings and another of watercress.
Close sandwich. Serves 6

.