Cut spaghetti squash in half, lengthwise. Scoop out seeds. Rub cavities with olive oil. Place cut side down on a shallow baking sheet. Roast for 35-45 minutes until skin is easily pierced with a fork and flesh scrapes out easily into a bowl. Reserve.
Cut chicken into bite sized pieces. Heat wok or large skillet over medium high heat. Add sesame oil and stir fry chicken for 3-4 minutes. Add in shrimp and cook an additional 2-3 minutes or until chicken and shrimp are cooked through. Remove from wok; reserve.
Add onion to wok and stir-fry for 2-3 minutes. Add in bean sprouts and carrots, cook another 2 minutes. Make a well in the center and add two eggs; scramble. Return chicken and shrimp to wok, along with spaghetti squash, scallion, cilantro and half of sauce. Fold to combine. Remove from heat. Add additional sauce to taste.
Serve sprinkled with chopped peanuts and lime wedges.