Lightly oil or coat a 9x13-inch baking pan with nonstick cooking spray and set aside. Preheat the oven to 375°F.With a sharp knife, slit the shrimp down the back without cutting all the way through. Open the shrimp halves to form a butterfly shape and flatten gently, using a mallet or rolling pin. Place shrimp on the prepared baking pan and set aside. Heat the olive oil in a nonstick skillet over medium heat. Add the garlic and cook until golden, 1 minute. Add the spinach and cook until the spinach is wilted, about 3 minutes. Remove the spinach from the skillet, place on a cutting board, and finely chop. Return the spinach to the skillet and add the breadcrumbs, Parmesan cheese, pecans, dried cranberries, lemon juice, butter, salt and black pepper to taste. Divide the stuffing mixture evenly and place on top of the shrimp, pressing down gently. Bake until the topping is golden brown and the shrimp are cooked through, 12 to 14 minutes.
Recipe Credit: Janice Newell Bissex, MS, RD & Liz Weiss, MS, RD