In a large bowl, combine the tomato, cucumber, red onion, kidney beans, tofu and basil. Just before serving, toss with balsamic vinaigrette salad dressing, and season with salt and pepper.
Dressing: In a small bowl, whisk together olive oil, vinegar, garlic and ground mustard. Season to taste with salt and black pepper. Stir in minced fresh herbs if desired. Yield: 1-1/4 cup dressing.
Serves: 4.