We are going to cook incredibly delicious and juicy chicken in mustard marinade with vegetables - a great dish for a hearty lunch or dinner. Thanks to the marinade of the two types of mustard and finely chopped onion, the meat turns out tender, with a delicious golden crust. Vegetables soak in juice from chicken and become fragrant and incredibly delicious. You can cook chicken drumsticks, wings or even a whole chicken instead of thighs for this recipe. Until the pumpkin season has not begun, this ingredient can be replaced by carrots.