Having just completed a trip to the USA traveling through JFK, LAX and MIA i visited each AA Flagship lounge in these locations and each time they told me 'we don't have any kosher meals'.
I sent an email to AA why they don't have kosher meals in their Flagship lounges/first dining in these locations, they responded the following;
Thank you for contacting Admirals Club Member Services. We appreciate the opportunity to respond to your inquiry and apologize for the delay.
I reached out to Admirals Club Management regarding our Kosher food offerings.
Kosher meals should be available in the Chicago (ORD), New York-JFK, and Miami Flagship Lounges starting next week. The LAX location within the next 3 weeks.
So lets hope it turns out this way and they start offering kosher meals in these locations.