Every Monday, you can score a Single Croissan'wich at Burger King for $2 - regularly $3.79. Choose from a Sausage, Egg, & Cheese Croissan'wich, OR Bacon, Egg, & Cheese Croissan'wich OR Ham, Egg, & Cheese Croissan'wich. You can find this under Offers in your Burger King app. A Royal Perks (free to join) account is required.