01 - Preheat oven to 375°F. Grease a baking dish large enough to fit the stuffed peppers upright.
02 - In a large skillet over medium heat, cook the ground beef and kielbasa until browned, about 7 minutes. Drain excess fat.
03 - Add onion and garlic to the skillet. Sauté for 3-4 minutes until soft.
04 - Stir in cooked rice, diced tomatoes, 4.25 oz cheese, parsley, smoked paprika, oregano, salt, and pepper. Mix well to combine.
05 - Spoon the cheesy beef-rice filling into each bell pepper, pressing gently to stuff.
06 - Arrange peppers upright in the prepared baking dish.
07 - Pour beef broth around the base of the peppers.
08 - Cover tightly with foil and bake for 30 minutes.
09 - Remove foil, sprinkle extra shredded cheese on top of each pepper, and bake uncovered for 15 minutes, until cheese is golden and peppers are tender.
10 - Let rest 5 minutes before serving. Garnish with extra parsley if desired.