Spread eggplant cubes on baking paper in a baking tray and sprinkle them with sea salt. Set them aside for 5 minutes. Then soak excess liquid with a kitchen paper.
Place the tray with eggplant in the oven and roast it for 5 minutes.
Meanwhile, heat 1 tbsp olive oil in a saucepan and add onion and garlic. Sauteé for 2 minutes, then add cayenne pepper, oregano, smoked paprika, and chili flakes, if using. Mix and cook for 1 minute.
In another saucepan bring water to boil, add salt and your gluten-free pasta. Cook according to package instructions. Usually about10-12 minutes. Then drain and rinse.
Divide into bowls and garnish with fresh basil leaves, sesame seeds, and vegan parmesan.