Whole Wheat Spaghetti with Veggies and Peanut Sauce

8 ounces whole-wheat spaghetti
Coarse salt and ground pepper
4 ounces snow peas, tough strings removed
3 medium carrots, halved, and shaved with a vegetable peeler 1 container (14 ounces) firm tofu, drained and cut into 1-inch cubes
3 tablespoons smooth peanut butter
2 tablespoons soy sauce
2 tablespoons rice vinegar
2 tablespoons light-brown sugar

Cook pasta in a large pot of boiling salted water until al dente, according to package instructions. Reserve 1/2 cup pasta water. Add snow peas, carrots, and tofu to pot; immediately drain pasta mixture, and set aside.
In pasta pot, stir together peanut butter, soy sauce, vinegar, and sugar. Add reserved pasta mixture; toss gently, adding reserved pasta water a little at a time to create a thin sauce that coats spaghetti (you may not need all the water). Season as desired with salt and pepper. Serve. (recipe and picture from marthastewart.com/everyday)