Vegetarian Tofu and Nut Loaf

Name: Vegetarian Tofu and Nut Loaf
Ingredients: cooking spray; 1 (12 ounce) package firm tofu, drained and cubed; 2 eggs; 1 (1.25 ounce) envelope dry onion soup mix; 1 tablespoon soy sauce; 3/4 cup chopped walnuts; 1 teaspoon olive oil; 1 (8 ounce) package sliced fresh mushrooms; 1 small onion, chopped; 2 stalks celery, chopped; 1 1/2 teaspoons dried oregano; 1 1/2 teaspoons dried basil; 1/2 teaspoon dried sage; 1 1/2 cups dry bread crumbs