If using Rhodes bread down, allow dough to rise in a warm oven until double.
Combine cheeses and pepper and set mixture aside.
Roll dough into a 10x16 inch rectangle. Spread softened butter over the entire surface of the dough.
Sprinkle the cheese/pepper mixture over prepared dough and roll up, beginning at the 16 inch side.
Fold ends under and place on greased cookie sheet with seam side down.
With a sharp knife, cut about 3-4 slants diagonally across the top.
Place in a warm oven and let rise until double again.
Remove and heat oven to 375°F and bake for 20-25 minutes or until golden brown and loaf sounds hollow when tapped.
Serve with marinara dipping sauce, if desired.