LINQ recursion function?

Let's take this n-tier deep structure for example:

public class SomeItem 
{
     public Guid ID { get;set; }
     public string Name { get; set; }
     public bool HasChildren { get;set; }
     public IEnumerable<SomeItem> Children { get; set; }
}

If I am looking to get a particular Item by ID (anywhere in the structure) is there some LINQ goodness I can use to easily get it in a single statement or do I have to use some recursive function as below:

   private SomeItem GetSomeItem(IEnumerable<SomeItem> items, Guid ID)
    {
        foreach (var item in items)
        {
            if (item.ID == ID)
            {
                return item;
            }
            else if (item.HasChildren)
            {
                return GetSomeItem(item.Children, ID);
            }
        }
        return null;
    }