Mix 1 tbsp olive oil, 1 tbsp rosemary, FlavorGod 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.
Add sweet potatoes, lemon slices and rosemary sprigs, ensuring the chicken is not covered by potatoes. Move skillet to the oven. Cook for 20 minutes before adding asparagus to oven.
On a foil lined baking sheet, toss asparagus with remaining 1/2 tbsp olive oil and more Flavor God seasoning. Add asparagus to oven and cook for an additional 15-20 minutes or until the chicken reaches an internal temperature of 165 degrees.