Pat the fish dry with paper towels to remove moisture and season with salt on both sides.
Heat a skillet with a large surface bottom over medium-high heat. (Use a non-stick, a cast-iron skillet, or stainless steel pan, whichever you feel most confident using.) Add avocado or olive oil, about 2 to 3 teaspoons, or enough just to coat the pan.
Once the pan is hot, place the fish fillets in the pan and cook without touching or moving them for about 3 to 4 minutes. Using a fish spatula, gently flip the fillets to the other side. If the fish is sticking to the pan, give it another minute to cook. In general, fish is ready to flip when it easily separates from the pan.
Cook on the other side for about 2 minutes. Add to the pan butter and juice of half a lemon. Tilt the pan to one side, and using a spoon, spoon the melting butter and lemon mixture over the fish, repeating several times. Transfer fish to a serving plate and sprinkle with fresh cilantro or dill.
To cook green beans
In the same hot pan, add green beans. Using a spatula, mix the green beans with the butter and lemon mixture still coating the pan, season with garlic salt or salt and garlic powder. If the green beans appear dry or not coated well, add an optional sliver of butter and ½ lemon to the pan. Cook for about 3 to 4 minutes or until the beans are bright green. Remove to a serving plate and enjoy!
Notes
Make sure the fish is fully thawed.
Pat the fish dry before cooking for a crispy exterior.
Ensure the pan is hot before adding the fish.
Have all ingredients ready to go before you start cooking, as the recipe comes together quickly.
You can substitute green beans with asparagus, snow peas, or broccolini.