Add the brown rice to a medium saucepan with double the amount of water (rice to water ratio 1:2). Bring to a simmer and set the timer to 25 minutes.
Heat the sun-dried tomato oil in a large, deep frying pan. Add the thinly sliced onion, chilli flakes, and a pinch of salt and pepper. Gently fry on a medium heat for around 4 minutes.
Next, add the minced garlic, dried basil, and sun-dried tomatoes. Continue frying for a couple of minutes.
Pour the fish stock into the pan and add the defrosted Basa fillets (seasoned with salt on both sides) into the pan. It doesn't matter if the fillets aren't completely submerged. Reduce the heat to a low simmer for 10 minutes. Cover with a lid.
After 10 minutes, add the crème fraîche, lemon juice, and spinach into the pan. Season with salt and pepper. Serve a portion of brown rice with the creamy basa fillets. Top with fresh parsley and enjoy!