Preheat oven to 400°F. Line a baking tray with aluminum foil and lightly grease with cooking spray; set aside.
In a small blender or processor, pulse 1 cup whole oats to grind.
In a large bowl, add the beef, pork, green onions, ground oats, garlic, egg, sesame oil, ginger, salt, and pepper. Mix with your hands until fully combined. Form into 1-inch meatballs and place on baking tray. Bake for 20-25 minutes until cooked through.
To prepare the kimchi sour cream, combine the kimchi and yogurt in a food processor and pulse until smooth. Cover and refrigerate until ready to use.
In a small bowl, mix together the hoisin, honey, Tamari, and Sriracha. Add the cooked meatballs and toss until fully covered.
Divide rice into 6 equal bowls. Top with zucchini, slaw, and meatballs. Garnish with sesame seeds, green onions, and kimchi cream sauce.