Not Downtown, but here's 2 more (I haven't personally tried either though):
Whale & Ale - San Pedro
"Beef Wellington; the best Choice Filet Mignon, packed with mushroom duxelle (finely chopped mushrooms, garlic butter & seasoning) wrapped in puff pastry & baked. Périgourdine sauce (beef stock reduction with marsala, chopped black truffles), vegetables or mashed fresh potatoes"
The Queen Mary - Sir Winston's - Long Beach
Pate or No Pate - Are we going to have that debate again ?
Our favorite place for B Welly is at Le Petit Chateau in North Hollywood. I don't know of a downtown restaurant that offers it. Much of the time places that do it only offer it as a sometimes special, which makes it hard to find. Le Petit Chateau does the traditional version that includes the layer of pate in between the meat and the pastry crust. Here is a prior review I did on it: http://chowhound.chow.com/topics/4547...
Le Petit Chateau Restaurant
4615 Lankershim Blvd, North Hollywood, CA 91602