Instructions: Be sure to use the firm, Chinese-style tofu rather than the soft or regular tofu. It tastes best after it has been marinated for several days. PREPARE A FIRE if you are grilling the tofu, and grill it on both sides, about 6 inches above the coals, until it is well-browned and a little crispy.

Otherwise, broil the tofu on both sides. Spread the bread with mayonnaise and horseradish to taste. Slice the tofu in half, crosswise, to make pieces 1/2-inch thick, and cut the pieces to fit the bread. Arrange the tomato slices on the tofu, and salt and pepper them; add the onion if you wish.

Cover with the lettuce and the top piece of bread.

If you would like to email yourself the recipe for later use, or share the recipe with your friends or family, enter the email addresses below and this recipe will be emailed to you and others as well.