Instructions: Combine the vinegar and soy sauce in a small bowl. Whisk in the olive oil. Place the steak in a large glass or ceramic baking dish and pour the marinade over it. Cover and refrigerate for up to 3 hours, or overnight. Turn steak occasionally.

Prepare a gas or charcoal grill.

Grill steak over medium-hot coals for 4 to 5 minutes to a side for rare; 6 to 7 minutes for medium. Baste with the marinade during grilling. Remove steak to a cutting board and thinly slice on the diagonal. Cover the meat and refrigerate to chill.

To prepare the onion rings, pre-heat oven to 350 degrees. Place sliced onions in a roasting pan. Toss with 2 tablespoons olive oil and salt and pepper. Roast the onions until fork-tender, about 1 hour.

To assemble the sandwiches, generously spread the bread with the mayonnaise or mustard. Divide the sliced steak between 6 of the bread slices and cover it with the roasted onion rings. Top with the shredded lettuce and the remaining bread and cut the sandwiches in half.

This recipe yields 6 sandwiches.

Comments: This wonderful, hearty sandwich is great for a picnic lunch.

Scott-Goodman"

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