public override string ToString()
{
var sizeName = Size.ToLower().Replace("size", string.Empty);
var crustName = Crust.ToLower().Replace("crust", string.Empty);
var sauceName = Sauce.ToLower().Replace("sauce", string.Empty) + " sauce";
var cheeseName = Cheese.ToLower().Replace("cheese", string.Empty) + " cheese";
return($"It is of {sizeName} size with {crustName} crust, {sauceName}, {cheeseName}, {ToppingsToString()} as toppings.");
}