Slice the peppers into strips. Cut the green onions into 1 ½ to 2-inch sections. Chop some of the green onion tops and set them aside to use later.
Place the peppers and green onions on a large baking sheet. Drizzle with olive oil and mix well.
Push the peppers and onions to the outer sides of the baking sheet. Place the chicken thighs on the baking pan and lightly sprinkle everything with salt.
Mix together the ingredients to make the orange sweet and sour sauce.
Use all of the orange sweet and sauce and generously cover the chicken thighs. They are now ready to bake.
Put the chicken in the oven and cook until the temperature reaches at least 165 degrees F. We prefer chicken thighs cooked to 180 to 185 degrees.
Side note - I moved the chicken and peppers to another pan for serving and photography purposes. Chicken thighs do leave a lot of grease in the pan. If you like ( I have done this) move the chicken and peppers to paper towels to lightly drain before moving to a serving dish.Also, for easy clean-up, line the baking sheet with aluminum foil before cooking.