In a medium bowl, combine the ground pork, sea salt, black pepper, and onion powder using your hands until just mixed.
Roll the mixture into 8 to 10 small, uniform meatballs.
Heat the olive oil in a large skillet over medium-high heat.
Add the meatballs to the skillet and sear for 6-8 minutes, turning occasionally until browned on all sides and cooked through.
Remove the meatballs from the skillet and set aside on a plate.
In the same skillet, add the minced garlic and chopped kale, sautéing for 2-3 minutes until the kale is wilted and vibrant green.
In a small bowl, whisk together the chicken broth, Greek yogurt, and Dijon mustard until smooth.
Lower the heat to medium-low and pour the mustard mixture into the skillet with the kale, stirring constantly to create a creamy sauce.
Return the meatballs to the skillet and toss gently to coat them in the velvety sauce.
Garnish with fresh parsley and serve immediately.