Beef, Orange, and Gorgonzola Sandwiches Recipe

• 2 tablespoons cider vinegar
• 1 1/2 teaspoons extravirgin olive oil
• 1/2 teaspoon grated orange rind
• 1/8 teaspoon salt
• 1/8 teaspoon freshly ground black pepper
• 1 cup fresh orange sections (about 2 oranges)
• 4 (2-ounce) Italian or French rolls
• 2 cups thinly sliced Basic Grilled Flank Steak (about 8 ounces)
• 1 cup bagged prewashed baby spinach
• 1/4 cup (1 ounce) crumbled Gorgonzola or other blue cheese

Directions