01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - In a large bowl, combine ground beef, egg, breadcrumbs, Parmesan, garlic, parsley, salt, black pepper, and red pepper flakes. Mix until just combined; do not overwork.
03 - Roll mixture into 1-inch balls and place on prepared baking sheet.
04 - Bake for 15 minutes, until browned and cooked through.
05 - In a saucepan over medium heat, combine tomato sauce, olive oil, honey, Worcestershire sauce, oregano, and garlic powder. Simmer for 5 minutes, stirring occasionally.
06 - Transfer baked meatballs to the saucepan. Toss gently to coat and simmer together for 3–5 minutes.
07 - Serve warm, garnished with extra parsley if desired. Provide toothpicks for easy serving.