In a large non-stick wok or skillet, heat 1 1/2 tsp sesame oil and 1 1/2 tsp of the canola oil over medium-high heat. If using raw chicken, add chicken pieces, season lightly with salt and pepper and saute until cooked through, about 5 - 6 minutes. Transfer chicken to a plate and set aside.
Return skillet to medium-high heat, add remaining 1 1/2 tsp sesame oil and 1 1/2 tsp canola oil. Add peas and carrots and saute 1 minute, then add garlic and saute 1 minute longer.
Push veggies to edges of pan, add egg in center and cook and scramble.
Return chicken to skillet along with rice and spinach and cook on medium heat for 1-2 minutes.
Add in soy sauce and season with salt and pepper to taste.
Serve warm with Sriracha to taste if desired.