Sheryl Rosen wrote:

<snip>
>>ok, but what's with the lettuce Bob?
>
>
> adds moisture to the oven, to make steam.
> Also, acts as a cover for the meat, to keep heat/steam in, prevent drying
> out of the meat.
>
> sorta like covering it with a damp paper towel.
>

I'll buy that Sheryl. I should have thought of it actually.

--
Steve