Ingredients

• 1 tablespoon olive oil
• 1 yellow onion, finely chopped (about a cup)
• 1 stalk celery, finely chopped
• 1 carrot, finely chopped
• 1 teaspoon dried parsley (or 1 tablespoon fresh, finely chopped)
• 1 teaspoon dried oregano
• 1/2 teaspoon dried sage
• 1 large egg
• 2 tablespoons heavy cream (optional)
• 1/4 cup grilling sauce (such as Stonewall Kitchen's Maple Chipotle Grille Sauce), barbecue sauce or ketchup
• 1 1/2 pounds lean ground beef
• 1/2 cup panko or other unflavored bread crumbs
• 3 very thin slices of prosciutto or bacon

Serves 4 to 6