01 -
Heat grill, grill pan, or skillet over medium-high until hot for searing patties.
02 -
In a bowl, combine ground beef, Italian sausage, and pizza seasoning. Mix gently until just combined.
03 -
Divide mixture into 4 equal parts. Form patties slightly larger than buns. Press a thumbprint in the center of each.
04 -
Place patties on grill. Cook for 4 minutes without pressing down to maintain juiciness.
05 -
Warm marinara sauce over medium-low heat. Lightly crisp pepperoni on foil or pan over grill.
06 -
Flip patties and cook 2-4 minutes to preferred doneness (140°F for medium). Top with mozzarella in final minute.
07 -
Butter buns and toast cut-side down on grill for 1-2 minutes until golden.
08 -
Place patty on bun base, top with marinara, pepperoni, and Parmesan. Add top bun and serve hot.