Rehydrate porcini mushrooms: In a small saucepan, add porcini mushrooms and just enough boiling water to cover. Let mushrooms rest for 30 minutes. Drain mushrooms.

Lightly coat a grill rack or broiler pan with nonstick cooking spray and preheat grill or broiler.

In a medium skillet, heat oil over medium heat until hot. Add onion, button mushrooms and porcini mushrooms and sauté about 2 minutes, or until onion is softened and mushroom juices are released. Add 2 tablespoons of red wine and sauté, scraping up the brown bits until wine evaporates. Add bread crumbs, parsley, salt and pepper and cook until mixture is dry, about 2 minutes.

Transfer mushroom mixture and 1 tablespoon red wine to a blender and pulse mixture until just blended. In a large bowl, add ground beef, mushroom mixture and pepper to taste. Form mixture into 4 patties.

Grill burgers (or broil 4 inches from heat), about 8 minutes, turning once, until cooked medium well.