1. Place warm potato halves on a parchment-lined baking sheet. If you're using refrigerated potatoes, heat in the microwave for a minute or so to warm. Use a fork to fluff the inside of the potato without breaking the skin.
2. Divide the marinara sauce between the potato halves and mix together a bit. Make a well in the center of the sauce and crack an egg into it.
3. Broil 3 - 4 minutes or until the egg whites are set. Yolks will be runny: broil longer for more fully cooked egg.
4. Sprinkle with the pinch of paprika and serve.