Sesame Udon Noodles with Roasted Vegetables

Name: Sesame Udon Noodles with Roasted Vegetables
Ingredients: 3 tablespoons tahini sauce; 3 tablespoons shoyu or tamari sauce; 2 tablespoons granulated sugar or maple syrup; 1 tablespoons toasted sesame oil; 1 teaspoon Asian chili garlic sauce; 1 teaspoon finely chopped garlic; 1 Japanese eggplant (sliced into 2-inch chunks); 3 ounces shiitake mushroom caps (sliced into 1/2-inch strips); 1 red, orange or yellow bell pepper (sliced into 2-inch pieces); 1 cup cherry tomatoes; ½ cup sliced red onion; 2 tablespoons extra virgin olive oil; ½ teaspoon crushed red pepper; ½ teaspoon salt; 1 green onion (white and green tops) (sliced diagonally); 2 cups baby spinach leaves; 12 ounces udon noodles (or spaghetti)