• Combine all ingredients for the compound butter in a small bowl. Stir until thoroughly combined.
  4 tablespoons softened butter, 3 tablespoons grated Parmesan cheese, 1 teaspoon dried oregano, dash of salt
• Preheat the oven to 325 degrees F. While you prep the sandwiches, heat an ovenproof skillet over medium-high heat.

Assemble the sandwiches:

• For each sandwich, spread a small amount of pizza sauce on the surface of two slices of bread.
  4 tablespoons prepared pizza sauce, 4 slices whole wheat bread
• Add the mozzarella cheese, black olives, and pepperoni.
  4 ounces sliced or grated mozzarella cheese, 2 tablespoons sliced black olives, 4 ounces thinly sliced pepperoni
• Top with a second slice of bread.
• Spread the top of the assembled sandwiches with a generous amount of compound butter.
• Place the sandwiches, buttered side down in a skillet over medium-high heat. Cook until bread is nicely grilled.
• While the first side is grilling, butter the second side of the sandwich. Turn sandwiches over and cook until the second side is toasted.
• Place the skillet with the sandwiches in the preheated oven for 5-6 minutes or until the cheese is melted. Remove from the oven and serve immediately.