Clam Meat

Clam Meat can be found in the protective shells of small mollusks.

Source
This meat can be found in Giant Clams under the water as well as on creatures under level 30 that live near the sea.

According to comments at Wowhead, the best place to farm this is from Shore Crawlers on the beach of Westfall. It provides an excellent way to skill up Cooking from 90 to 150 by using Recipe: Clam Chowder. Sea Crawlers in Westfall also offers an excellent level-up area for Cooking as they drop drop Small Barnacled Clam which always contain a Clam Meat, and they also drop Crawler Meat, which is used in Crab Cake

Cooking

 * Boiled Clams
 * Clam Chowder