In a small bowl combine pineapple, chili powder, and salt.

Stir until pineapple is fully coated.

Remove skin and pit from avocado.

Place avocado and lime juice in a small bowl.

Using a fork, mash until avocado is creamy.

Place a 4-inch ring mold on a small plate.

Spoon half of the pineapple mixture evenly as the bottom layer.

Spread half of the mashed avocado on top of the pineapple.

Spoon half of the diced mango over the avocado.

Sprinkle 1 tablespoon of macadamia nuts over the mango.

Carefully remove mold, and repeat for second serving.

Serve immediately.