Using Trader Joe’s—which is known for its wide array of delicious snacks, freezer staples, and ready-to-eat products—as a supermarket baseline, SELF reached out to a few RDs to ask for simple dinner ...
In a 6-inch sauté pan, add cooking oil over high heat. Season black cod with salt and pepper on both sides, then sear presentation side down. Add remaining 2 tablespoons of butter, letting it brown.