Combine the first 10 ingredients in a large saucepan; bring to a boil. Reduce heat; simmer 10 minutes. Stir in mushrooms, edamame, and bell pepper; cook 1 minute. Place mushroom mixture in a large bowl; cool to room temperature. Discard bay leaf. Add pasta, and toss to combine. Cover and refrigerate overnight.
Very good. Light, refreshing. Makes a good 4 servings. Keeps well.