Preheat your oven to 400°F (200°C) and line a rimmed baking pan with parchment paper.

Spread a layer of freshly grated parmesan cheese evenly across the lined baking pan, about ¼ inch thick.

Slice the medium-sized yellow onions thinly and arrange in a single layer over the parmesan.

Drizzle avocado oil over the onion slices, ensuring each piece is evenly coated.

Sprinkle paprika, coarse sea salt, garlic powder, seasoning salt, and black pepper over the onions, covering evenly.

Bake for 25 to 30 minutes, watching for a rich golden brown color and crispy texture.

Remove from oven and allow to cool for about 10 minutes before breaking into pieces.

Serve fresh, optionally with dips like tzatziki or ranch dressing.