I need help in finding a quality organic prepared meal home delivery
service that services the Washington D.C. area; specifically, the
Falls Church, VA area.

My wife is pregnant and once the baby is delivered, I want the meals
ready to go so we don't have to worry about what we are going to eat.

To be sure, the meals HAVE to be organic, and there must be a variety
of dishes.  Ideally, we'd have all delivered on Monday each week for
the rest of the week.

Why don't you get a personal chef?  Some of them work in your home,
but some of them deliver.  This would enable you to get your specific
food needs met.  Try a search for personal chef organic DC, or ask in 
your local organic grocer.

That's fine as well, so if you can find me a chef who prepares and
delivers organic food that would help (don't want them in my house;
too much going on).

This service sounds good to me. You might want to arrange a consultation:

http://www.returntothegarden.net/index.html

Another possibility:

http://www.saving-thyme.com/pages/911490/index.htm

Diamond Organic offers next day delivery for prepared meals:

http://www.diamondorganics.com/ShowView/prod_detail_list/11