01 - Preheat the oven to 400°F and line a baking sheet with parchment paper.
02 - In a large bowl, combine the ground beef, onion, garlic, breadcrumbs, egg, smoked paprika, black pepper, salt, oregano, and thyme. Mix in the cheese and parsley if desired.
03 - Mix the ingredients until evenly incorporated, taking care not to overmix to maintain texture.
04 - Shape the mixture into small balls approximately 1 inch in diameter and arrange them on the prepared baking sheet.
05 - Bake for 20 to 25 minutes, turning once halfway through, until browned and cooked through.
06 - Remove from the oven, let cool slightly, and serve warm or at room temperature.