1: Prepare the meatballs by mixing ground beef, onion, garlic, bell pepper, parsley, salt, and pepper.
2: Shape the mixture into meatballs.
3: Cook the meatballs in a pan until fully cooked.
4: Assemble the bento box with rice, ham, roasted seaweed, red bell pepper, mozzarella cheese, and lettuce.
5: Serve the meatballs alongside the assembled ingredients.
