A little warmer weather, a little plumper bird, a little less wing count per pound, and Whammo! Your stock takes a pounding like a slab of beef on the business end of a butcher's mallet.

Wings-and-beer joint Buffalo Wild Wings (NASDAQ:BWLD) was tenderized by the market yesterday, losing about 20% of its market cap as it reported third-quarter earnings. While sales and earnings rose 20.5% and 20%, respectively, right in line with management's 2007 and 2008 expectations, costs associated with the rising cost of chicken (which CEO Mary Twinem associated with warmer weather down South) caused a corresponding increase in costs.

Yet at $30 a share now, it might be the time to belly up to the bar and order a wing or two. The market is valuing the stock at about 27 times current year's earnings and 21 times next year's. Or looked at another way, the market is suggesting a 1.32 price-to-sales ratio for Buffalo Wild Wings in 2008, well below its trailing-12-month historical average. Compare that to ailing Applebee's (NASDAQ:APPB) at 1.39, and Sonic (NASDAQ:SONC) at 1.6. In fact, Chipotle Mexican Grill (NASDAQ:CMG) seems positively priced to perfection at 53 times 2008 earnings and almost three times the P/S ratio of B-Dubs.

The third quarter saw revenues rise to $82.4 million on the strength of a 20% increase at company-owned locations. Same-store sales at those restaurants rose 8.8% compared to a still respectable near 6% increase at franchised locations. Consider that analysts expect sales to remain essentially flat and earnings to fall 20% at Jack in the Box (NYSE:JBX), and sales to fall 4% at Applebee's in the December quarter, and the sell-off looks overcooked.

In reality, the market's reaction really shouldn't be a surprise to investors who've been with B-Dubs for any appreciable length of time. When it missed earnings by a penny last year, it dropped 10% in price only to surge again the following quarter, when it beat expectations.

The company did miss this quarter's analysts estimates, and the market has fried its stock as a result. But it's still on target to hit management's annual goals of 15% unit growth, 20% sales growth, and 25% EPS growth, which suggests to this Fool that wings and beer should not be the only thing on an investor's menu.

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Buffalo Wild Wings and Chipotle Mexican Grill's Class B shares are both recommendations of Motley Fool Hidden Gems. Feast on all the recommendations with a 30-day free guest pass.

Fool contributor Rich Duprey does not have a financial position in any of the stocks mentioned in this article. You can see his holdings here. Chipotle is also a Rule Breakers pick. The Motley Fool has a disclosure policy.