Prepare Patties:
In a bowl, mix ground beef, Italian seasoning, salt, and pepper. Form into 4 equal patties.

Cook Patties:
Heat a grill or skillet over medium-high heat. Cook patties for about 4–5 minutes per side or until desired doneness.

Add Cheese and Pepperoni:
Place mozzarella slices and 2 pepperoni slices on each patty during the last minute of cooking. Cover to melt cheese.

Assemble Burgers:
Toast buns if desired. Spread marinara sauce on the bottom buns. Place patties on buns, add extra pepperoni and olives if using, and garnish with fresh basil or parsley.

Serve:
Serve warm with your favorite side.