Businesses expect a lot more out of their employees these days, as a visit to Rioja, the top-rated Denver restaurant, can demonstrate. If you like Rioja's hazelnut tortamisu, thank pastry chef Eric Dale. And if you happen to pop your head into the bakery room and admire the tile job on the floor, you can thank him for that, too.

Ever since his boss, chef Jen Jasinski, discovered that Mr. Dale is handy, she's had him doing double duty as the maintenance man. He has spent hours repainting the oven, fixing the plumbing and installing...