Preheat your oven to 375°F (190°C). Line a large baking sheet or pizza stone with parchment paper.
Unroll both cans of crescent dough and separate them into 16 triangles.
Arrange the triangles in a circle on the baking sheet with the wide ends overlapping in the center and the points facing outward. The center opening should be about 5 inches wide, looking like a sunburst.
Layer the ingredients on the ring of wide dough ends: start with half of the provolone cheese slices.
Top the cheese with the sliced roast beef, followed by the beef pepperoni and diced tomatoes.
Finish the layering with the remaining provolone cheese slices.
Bring the point of each dough triangle up over the filling and tuck it securely under the bottom layer of dough in the center. Repeat until all points are tucked, forming a ring.
Brush the top of the dough with the melted butter and sprinkle with Italian seasoning and fresh parsley.
Bake for 20 to 25 minutes, or until the crescent dough is golden brown and the cheese is melted.
Allow the ring to cool for 5 to 10 minutes before slicing and serving.