Preheat oven to 425°.
To prepare salad, combine first 6 ingredients in a 13 x 9-inch baking dish; toss gently to coat. Bake at 425° for 40 minutes or until mushrooms are tender and tofu is golden brown.
Cook pasta according to package directions, omitting salt and fat; drain and rinse under cold water. Drain. Combine pasta, tofu mixture, and green onions in a large bowl.
To prepare dressing, combine the cilantro and remaining ingredients, stirring well with a whisk. Drizzle dressing over salad; toss well to coat. Cover and chill at least 1 hour.