This high-fiber red velvet cake recipe uses whole wheat flour and oat flour to add fiber to the cake. The cake is sweetened with honey and applesauce, making it a healthier option than traditional red velvet cake. The cream cheese frosting is made with reduced-fat cream cheese and Greek yogurt, making it lower in calories and fat. This cake is a delicious and nutritious dessert option for anyone looking to add more fiber to their diet.