You certainly have no problem dressed up in your favorite designers: skinny little Joe's Jeans, Nanette Lepoore jacket, and Manolo slingbacks, but now you can eat designer food. No, no, Calvin Klein isn't selling frozen dinners. Chicago restaurants are serving designer beef.

"Designer" refers to a couple of things here. The beef might come from cows fed on a specific diet that makes it "premium." Companies like Tallgrass Beef Company and Slanker's Grass-Fed Meats in Texas tout the nutritional benefits of grass-fed beef. "Designer" beef can also mean that it shares the same genes with a very expensive, prize-winning bull. David Burke's Primehouse shelled out $250,000 for a black Angus bull named Prime 207L. Now they are guaranteed that "by inseminating heifers with semen from the same bull, the restaurant guarantees its steaks are of the highest quality." In any case, "designer" also means it's very expensive.

And premium, "designer" beef is making its way to actual designers, too. RL, Ralph Lauren's restaurant in downtown Chicago serves steaks from Lauren's ranch about four months a year.

Moo-la-la!