This sweet tropical fruit is an easy choice for a smart, delicious dessert.
Heat broiler, with rack in top position. Place a cast-iron or other heavy-bottomed ovenproof skillet in oven to heat, 5 minutes. Carefully place pineapple rounds in hot skillet. Sprinkle each slice with a pinch of ground cinnamon and 1 teaspoon sugar. Broil until edges turn golden, about 8 minutes, rotating skillet as needed.
Serve warm or at room temperature, topped with a scoop of vanilla frozen yogurt and dash of cinnamon.
You can easily double this recipe -- just be sure to wash the skillet between each batch.