Prep ingredients per instructions above. (Prepare and cook raw meat or vegetables for filling.)
Preheat the oven to 400 °F. Line a baking sheet with parchment paper.
Roll out the dough into a large rectangle. Evenly spread half of the cheese onto the dough, leaving about 2 inches along the edges bare. Layer with the prepared fillings of choice, leaving about 2 inches along the sides bare.
Fold the ends of the rectangle in, then fold one side of the dough over the filling, then the remaining side over top to enclose the stromboli. Crimp the seams of the dough shut using your fingers as best you can to seal the stromboli.
Brush the outside of the stromboli with olive oil and sprinkle with oregano. Bake in the oven until bubbly and golden brown, about 20 minutes.
Heat the marinara sauce in a saucepan over medium low heat until hot.
Remove the stromboli from the oven, and set aside for 5 minutes before slicing it into pieces. Serve with about a side of marinara sauce or more if desired (freeze the remaining sauce for future use).
Serve the stromboli with a side of sauce and cola.