Preheat oven to 425 degrees.
Drizzle the soy sauce over the chicken. Season the chicken with the BBQ seasoning, chicken seasoning, salt, and pepper.
Add the chicken in a Ziploc bag and add to the fridge while prepping the veggies.
Add the sliced sweet potatoes to a bowl. Drizzle the potatoes with olive oil. Sprinkle cinnamon throughout.
Add foil to a sheet pan. Spray with cooking spray.
Spread the sweet potatoes and chicken onto the sheet pan. Bake for 15 minutes.
Remove the sheet pan from the oven. Flip the chicken and sweet potatoes to the other side.
Add the brussels sprouts. Season with salt and pepper.
Return the pan to the oven for 10 minutes.
Remove the pan from the oven and allow the food to cool.
Place the chicken on a cutting board horizontally. Slice the chicken into small pieces.