Dice chicken and onion. Mince garlic. Spiralize zucchini into zoodles.
Heat up butter in a large nonstick skillet over medium heat. Add onion and garlic and cook until fragrant.
Increase heat to medium-high. Add chicken and cook until golden on all sides, stirring occasionally.
Add lemon juice, Worcestershire sauce, soy sauce, salt and pepper. Stir until combined and continue cooking until most of the liquid has evaporated.
Remove chicken from the skillet and keep warm. Add spiralized zucchini to skillet and cook over medium-high heat until tender, season to taste with salt and pepper.
Add chicken back to the skillet and toss everything together until combined. Serve immediately. Enjoy!