While the salmon is cooking, prepare the rice. Add the coconut milk to a saucepan and heat to medium-high. Add the garlic and green onion and cook until fragrant, about 3 minutes. Add the basil, spinach, and lime juice and continue cooking until spinach has wilted. Add the cooked rice, stir everything together until well combined, and continue cooking until rice is heated through, about 5 minutes. Add sea salt to taste and hot sauce if desired.