Place frozen dough on a pizza pan.
Cover with plastic wrap and let thaw at room temperature for 4-5 hours.
Roll out the dough into a circle onto a piece of parchment paper. Use flour to prevent sticking.
Roughly chop the graham crackers and chocolate bar into desirable chunks.
Set aside. Melt nutella spread in a bowl in the microwave for 15-30 seconds
Preheat a gas grill until hot, then turn the heat down.
Brush oil on one side of the dough.
Place the oil side down onto a preheated grill. Cook for 2-3 minutes .Brush the top side of the dough with oil, and flip it over
Spread the nutella over the cooked side of the dough and sprinkle with mini marshmallows, chopped graham crackers, and chocolate pieces.
Close the lid and cook 2-3 more minutes until the bottom of the crust is golden and the marshmallows on top puff slightly
Remove the s’mores pizza from the grill onto a large cutting board. Serve.