Season the chicken breasts with salt and black pepper. Heat the oil in a pan at medium heat, and flip the chicken pieces in it until they are browned from all sides. Take the pan off the heat and stack the pieces in the oven sheet.
In a bowl, mix together the American Garden Mustard, Habanero Sauce, and Lemon Juice, the melt butter, the mashed garlic, and the chicken stock.
Pour the mixture over the chicken pieces, then place the sheet in the preheated oven at 200oC for about 10 minutes.
Take the sheet out of the oven and add the lemon slices, then return the sheet to the oven for another 10-15 minutes.
Garnish with parsley and serve directly on your dining table.