# What You'll Need:
→ Dough
01 - 1 pound pizza dough, store-bought or homemade
→ Meat & Cheese Filling
02 - 8 ounces lean ground beef
03 - 2 ounces pepperoni slices
04 - 2 cups shredded mozzarella cheese
05 - 1/2 cup grated Parmesan cheese
→ Vegetables & Seasoning
06 - 1/2 cup chopped onions
07 - 2 cloves garlic, minced
08 - 1 teaspoon dried Italian herbs
09 - 1/4 teaspoon crushed red pepper flakes, optional
10 - Salt and black pepper to taste
→ Extras
11 - 1 large egg, beaten for egg wash
12 - 1 tablespoon olive oil
13 - Marinara sauce for serving
# Method:
01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Heat olive oil in a large skillet over medium heat. Add chopped onions and sauté for 2 to 3 minutes until translucent. Add minced garlic and cook for 30 seconds until fragrant.
03 - Add lean ground beef to the skillet, breaking it apart with a spoon as it cooks. Season with salt, black pepper, Italian herbs, and red pepper flakes. Cook until beef is completely browned and no longer pink, approximately 5 to 7 minutes. Remove from heat and allow to cool for 5 minutes.
04 - On a lightly floured work surface, roll out pizza dough into a large rectangle approximately 12 by 16 inches.
05 - Spread cooled beef mixture evenly over dough, leaving a 1-inch border on all sides. Layer pepperoni slices over beef. Sprinkle mozzarella and Parmesan cheeses evenly across the filling.
06 - Starting from a long edge, tightly roll dough into a log. Pinch the ends and seam firmly to seal, ensuring filling does not escape during baking.
07 - Place stromboli seam-side down on prepared baking sheet. Brush entire surface with beaten egg. Using a sharp knife, make 3 to 4 diagonal slits across the top to allow steam to escape.
08 - Bake for 25 to 30 minutes until golden brown and cooked through. Remove from oven and allow to rest for 5 minutes before slicing.
09 - Slice stromboli and serve with warm marinara sauce on the side.