• 12 bell pepper, tops cut off, seeded
• 1.4 kg ground beef, 85/15
• 0.4 l onion, diced
• 6 clove garlic, minced
• 1.1 l cooked rice, white or brown
• 0.7 l marinara sauce, plus extra for topping
• 0.7 l shredded mozzarella cheese, divided
• 3 tsp Italian seasoning
• 1½ tsp salt
• ¾ tsp black pepper
• 3 tbsp olive oil

Metric measurements are approximate conversions.