Here's a great deal that I came across yesterday. Every day (except Sunday), Takumi in Nashua, NH has a teppanyaki lunch buffet til 2pm. It's only $9.95 per person! This includes miso soup, salad, teppanyaki of your choice (chicken, shrimp, scallops, beef, etc...) cooked fresh in front of you and ALL YOU CAN EAT buffet of various food items such as sushi, fried rice, yakisoba noodles, shumai, and more.
This is a great deal so enjoy it while it lasts.