Cook the lo mein noodles according to package instructions. Once cooked, rinse the noodles under cold water to stop the cooking process, and then set aside.
Cut the chicken into strands.
Add 1 Tbsp of oil and 1 Tbsp of butter to the pan. Once the pan is hot, add the chicken. Leave the chicken alone to cook for a couple of minutes before lightly stirring.
Remove the cooked chicken from the pan and set aside.
Add 1 Tbsp of oil and 1 Tbsp of butter to the pan and add the carrots and peppers. Saute lightly until the vegetables are cooked. Add in the garlic and ginger and cook until fragrant.
In a bowl, mix together the sauce ingredients.
To the pan, add the noodles, chicken, and sauce. Turn the heat up to let the sauce thicken. Once the sauce has thickened and the noodles are reheated, the lo mein is ready for serving.
Garnish with green onions and enjoy!