Preheat oven to 425 degrees Fahrenheit.
Combine lemon juice, olive oil and spices into a container and whisk until smooth.
Pour half of sauce over chicken and marinate for 30 minutes.
In a large baking sheet, add the potatoes and asparagus and pour over the remaining sauce.
Add chicken to sheet and top with lemon slices.
Roast for 35 minutes and enjoy!