1Melt butter with olive oil in a large skillet over medium heat. Cook and stir green onions, garlic, parsley, salt, and pepper in the hot oil until vegetables are softened, about 2 minutes. Stir lemon juice and 1/4 cup brown sugar into green onion mixture, stirring constantly until sugar is dissolved, about 2 minutes more.
2Place catfish fillets into the skillet; cook until catfish easily flakes with a fork, 3 to 4 minutes per side. Transfer catfish to a plate and pour remaining lemon juice sauce on top. Sprinkle with remaining brown sugar.
Footnotes
Tip
Aluminum foil helps keep food moist, ensures it cooks evenly, keeps leftovers fresh, and makes clean-up easy.