If it isn't already sauced, tacos are one way to go.
This is what I do with leftover whole brisket, adapt accordingly and use about 1/2 cup of stock for your 2 cups of brisket.
BBQ Brisket
Chicken or Beef Stock
Cut brisket into cross-grain slices, 3/4 inch thick.
Break the slices into smaller chunks and put into a large fry pan,
add either chicken or beef stock, and put on high.
Once the brisket is very hot, mash the meat into the stock with a wire type potato masher.
Continue cooking and stirring until meat is moist but not dripping.
Season as desired however meat should not require additional seasoning.
For toppings I use what is available
"I drink to make other people more interesting."
Ernest Hemingway