Preheat oven to 450°. In a large bowl, combine bread, 2 tablespoons oil and 1/4 teaspoon salt; toss to coat. Transfer to an ungreased baking sheet. Bake 8-10 minutes or until golden brown. Cool to room temperature.
Combine mushrooms, 2 tablespoons oil, garlic and 1/4 teaspoon salt; transfer to a greased baking sheet. Bake at 450° 10-12 minutes or until tender.
In a large bowl, whisk vinegar, mustard, honey and remaining oil and salt. Add arugula, tomatoes, pine nuts, raisins, toasted bread and mushrooms; toss to coat. Sprinkle with goat cheese. Serve immediately.