Add the onion and saute for a few minutes until softened. (magicbulletblog.com)
Add onion, pepper and garlic and saute for a few minutes until soft and fragrant. (aggieskitchen.com)
Now this dish honestly tastes just as good cold too, especially if you like crisp raw veggies, but since I prefer my zoodles having that «pasta - like» feel, I simply sauteed mine for a few minutes on the stove and then just tossed them with the pesto sauce. (eatyourselfskinny.com)