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Here's the thing about decorating for Christmas. It should be fun. It should be an occasion. It should involve delicious food.

The Paleoista’s simple cooking, shopping and prep tips for the “caveman” diet.

My family has always insisted that the centerpiece of our Christmas feast be some kind of show-stopping roast. We're talking a standing rib roast or whole beef tenderloin. And, as if these prizes were not already rich enough in themselves, we tend to pair them with an extravagant sauce. My challenge for this column was to come up with a Christmas dinner showstopper just as glamorous as the usual stars, but somehow leaner.