Mix 1/2 tbsp olive oil, 1 tbsp chopped rosemary, Flavor God seasoning, garlic and lemon juice. Toss about 2/3 of mix with chicken in a large bowl, then remove the chicken, add sweet potatoes and remainder of mix and toss until evenly coated.
Pre-heat oven to 400 degrees.
Heat 1/2 tbsp olive oil in oven safe skillet.
Add chicken, skin side down and cook until browned, about 3-4 minutes. Set the chicken aside on a plate.
Add sweet potatoes to the bottom of the skillet in a single layer, then add chicken on top, skin side up. Move skillet to the oven. Cook for 20 minutes, then flip the potato slices and add lemon slices and rosemary sprigs
Return the skillet to the oven and cook for an additional 15-20 minutes or until the chicken reaches an internal temperature of 165 degrees.