8 ounces whole-wheat spaghetti
2 cups frozen edamame (shelled soybeans)
4 scallions, thinly sliced
1/4 cup oyster sauce or vegetarian "oyster" sauce
1/4 cup rice-wine vinegar
3 tablespoons reduced-sodium soy sauce
2 teaspoons sugar
2 teaspoons toasted sesame oil
1/8 teaspoon crushed red pepper
2 tablespoons canola oil
2 medium carrots, cut into matchsticks
2 small red bell peppers, cut into matchsticks