Creating delicious Korean BBQ Meatballs with Spicy Mayo Dip is easy. Follow these steps:

1. Preheat the Oven: Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper for easy cleanup.

2. Mix Ingredients for Meatballs: In a large bowl, combine the ground beef, panko breadcrumbs, green onions, soy sauce, sesame oil, brown sugar, garlic, ginger, egg, salt, and pepper. Mix until just combined; overmixing can make the meatballs tough.

3. Shape Meatballs: Using your hands, form the mixture into golf ball-sized meatballs, about 1.5 inches in diameter. Place them on the prepared baking sheet.

4. Bake the Meatballs: Bake in the preheated oven for 20-25 minutes, or until they are golden brown and cooked through. You can check for doneness using a meat thermometer—it should read 165°F (74°C) for poultry or 160°F (71°C) for beef/pork.

5. Prepare Spicy Mayo Dip: While the meatballs are baking, make the spicy mayo dip. In a small bowl, whisk together the mayonnaise, sriracha sauce, lime juice, and a pinch of salt. Taste and adjust seasoning, adding more sriracha if desired for additional heat.

6. Garnish the Meatballs: Once the meatballs are done, remove them from the oven and let them cool slightly. Sprinkle sesame seeds on top for added flavor and presentation.

7. Serve and Enjoy: Transfer the meatballs to a serving dish along with the spicy mayo dip.