You could stand on a corner and look around until a restaurant sign draws you in. But we've got a better idea. Each week, Elmhurst Patch picks a great restaurant either in town or nearby that is worth checking out. Here's this week's choice: ROBERTO'S RISTORANTE Looking for great food and a romantic atmosphere? You'll find that—and a delicious, traditional Italian menu—at Roberto's Ristorante. The restaurant is practically an Elmhurst institution. It started out as a carryout pizza place several decades ago, and expanded to add a warm restaurant with a touch of elegance. Start off with a …