Cover your cookie sheet with parchment paper.

Preheat oven to 400°F.

Lay the crescent roll dough out on the parchment paper, carefully stretching it.

Place the graham crackers in a food processor. Crush into crumbs.

Sprinkle half of the crumbs over the dough.

Bake the dough for 12-15 minutes, until golden brown.

Remove from the oven.

Place the chocolate bars on the dough in a single layer.

Line up the marshmallows on top of the chocolate.

Sprinkle the rest of the graham cracker crumbs over the top of the marshmallows.

Return to the oven and bake and additional 8-10 minutes. Watch carefully, as soon as the marshmallows start to puff up and get brown on top, remove them from the oven.

Serve warm.