Wrap the tofu with paper towels to remove excess moisture.
Mash the tofu and season lightly with salt and pepper.
Add oil to a pan and gently sauté the tofu over medium-low heat until soft, then let it cool.
Place lettuce, sautéed tofu, your choice of vegetables (such as cucumber, tomato, etc.), and boiled eggs or chicken breast on whole wheat bread.
Finish the sandwich with low-fat cheese or yogurt sauce.