01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Boil elbow macaroni in salted water following package directions. Drain and set aside.
03 - In a saucepan over medium heat, melt unsalted butter. Whisk in flour and cook for 1 minute. Gradually pour in milk, whisking continuously until sauce thickens, about 2 minutes.
04 - Remove saucepan from heat and stir in shredded sharp cheddar cheese, salt, and ground black pepper until smooth. Fold in cooked macaroni. Let mixture cool for 10 minutes.
05 - Unroll pizza dough and cut into 12 equal squares using a sharp knife.
06 - Place 1 tablespoon cooled mac and cheese in the center of each dough square. Top with 1 slice pepperoni and 1 cube mozzarella cheese. Gather dough around filling and pinch to seal tightly.
07 - Arrange bombs seam-side down on the prepared baking sheet. Brush tops with melted butter, sprinkle with grated Parmesan cheese, and dust with dried Italian herbs.
08 - Bake in preheated oven for 18 to 20 minutes, until golden brown. Cool for 5 minutes before serving.