Carefully drain the silken tofu and pat it dry with a paper towel. Cut it into thick slices or cubes, based on your preference. Arrange the tofu pieces on a serving dish.
In a small bowl, whisk together the olive oil, lemon juice, balsamic vinegar, minced garlic, dried oregano, a pinch of salt, and black pepper.
Pour the marinade evenly over the tofu slices, ensuring each piece is thoroughly coated. Cover and refrigerate for at least 1 hour, allowing the tofu to absorb the flavors.
In a separate mixing bowl, combine the cherry tomatoes, red onion, parsley, basil, and fresh oregano. Toss gently to combine and season with a pinch of salt and black pepper.
Remove the tofu from the refrigerator. Spoon the tomato and herb mixture generously over the marinated tofu, spreading it evenly.
Drizzle a bit more olive oil on top and adjust the seasoning if necessary. Serve immediately as a light main course or refreshing appetizer.