Step 1

Preheat oven to 325°. Line a rimmed baking sheet with parchment paper and arrange fish on top. Drizzle oil over fish and season both sides with salt. Roast until flesh flakes when top is pressed with a spoon, 15–20 minutes, depending on the thickness of your pieces.

Step 2

Meanwhile, combine chile, coconut milk, honey, mustard, and turmeric in a high-sided skillet or wide saucepan. Season generously with salt and bring to a simmer over medium heat. Cook, whisking occasionally, until sauce is reduced by a third and thickly coats a spoon, 12–15 minutes. Add green beans and cook until tender, about 3 minutes. Remove from heat and add tomatoes and lime juice. Taste and season with more salt if needed.

Step 3

Slip roast fish into sauce and top with cilantro. Serve with rice and lots of lime wedges for squeezing over.