01 -
In a medium bowl, combine lean ground beef, freshly grated Parmesan, garlic powder, onion powder, kosher salt, and black pepper until evenly mixed.
02 -
Heat a large deep skillet over medium-high heat. Add the seasoned ground beef mixture, diced green bell pepper, and diced sweet onion. Cook, breaking up the meat, until beef is no longer pink. Drain excess grease.
03 -
Add minced garlic to the skillet and cook for 1 minute until fragrant.
04 -
Pour in beef broth and marinara sauce; stir to combine and bring the mixture to a boil.
05 -
Stir in long grain white rice evenly into the boiling mixture.
06 -
Reduce heat to low; cover and simmer gently for 25 to 30 minutes, stirring every 10 minutes to prevent sticking. Rice is done when tender and most liquid has evaporated.
07 -
Remove from heat, add one cup shredded mozzarella cheese, and stir until melted throughout.
08 -
Sprinkle remaining mozzarella evenly on top, cover, and let it melt before serving.