If you're looking to impress a date with Viet style Asian-fusion food, try Brodard Chateau in Garden Grove:
http://www.brodard.net/chateau/location.html
The place used to be a steak house and is richly furnished. Get their "brodard rolls" (spring rolls) with special dipping sauce. It's not cheap, they charge $4-5 for just 2 rolls. I've heard that you can get more for your $ at their other restaurant in Westminster, hidden behind the Mall of Fortune:
http://www.brodard.net/location.html
If you go to the more expensive Chateau place, you can custom order some dishes. For example if you order the salad, you can request them to add shrimp for more $$. And I mean the big ones, not the little tiny ones they give you at Red Lobster.
Commenting on previous posts -- Taiko has declined in quality over the past decade. I like the Tulsa Rib Company for their beef ribs dinner special (3 big ribs), tell them not to smother the ribs in sauce. It's $10 and a good deal, however I think their Tulsa potatoes have declined in quality too.
The Shabu Shabu place by Ranch 99 at corner of Jeffery & Walnut is over priced and so-so in quality. But our choices here is rather limited. I like "Little Fat Sheep" at 120 S. Atlantic Blvd, Monterey Park. Their prices aren't cheap, we used to buy their spicy soup base and make the hot pot at home for less $.
I could also recommend Jazz Cat Cafe on 640 W. Valley Blvd, Alhambra. But don't bring young children here because their hot pots have open flame burners under them and the space is cramped. Great place to take a date if you're dating an East-Asian girl in her 20's. They do a good Taiwanese style hot pot. Do not park at the noodle place across the street, or else you'll get a ticket or get towed.
The Korean restaurant across from the Shabu Shabu place by Jeffery & Walnut, and I mean on same side as Ranch 99 center, is decent. The one across the street, in same side as Taiko, I think changed owners and most of their dishes are kinda lame, but they make an OK hot pot (Korean casserole). Walk around the corner to Yogurt Land afterwards and get some Yogurt with mochi toppings.