Prep the Cabbage: Remove any wilted outer leaves. Cut the cabbage into 4 to 6 wedges (depending on size), making sure to leave the core intact so the leaves stay together during cooking.
Mix the Seasoning: In a small bowl, whisk together the olive oil, garlic powder, paprika, salt, and pepper until well combined.
Coat the Wedges: Using a pastry brush or your hands, coat the cabbage wedges thoroughly with the seasoning mixture on all cut sides.
Air Fry: Preheat your air fryer to 400°F (204°C). Place the wedges in the basket in a single layer. Cook for 10–15 minutes, flipping them halfway through, until the edges are charred and the center is tender.
Whisk the Sauce: While the cabbage cooks, combine the Greek yogurt, lemon juice, minced garlic, Dijon mustard, whole grain mustard, salt, and pepper in a medium bowl. Whisk until smooth.
Plate and Serve: Spread a generous spoonful of the yogurt sauce onto a plate. Top with a warm cabbage wedge.
Finish: Garnish with a drizzle of chili oil and a sprinkle of fresh parsley for a pop of color and heat.