Preheat the oven to 350° F.
Lightly spray the inside of each brown bag with olive oil spray. The bags should be slightly translucent after spraying. Cut butcher’s twin in 4 8-inches long strings. Set aside.
In a small saucepan over low heat, melt the butter oil, lemon zest, and lemon juice.
Place the catfish in a single layer on a large rimmed baking sheet. Brush the sauce over the fillets and sprinkle with the TWS Cajun seasoning.
Place one lemon slice and one dill sprig on each fillet. Gently slide each fillet into each paper sack.
Gather the mouth of the bag and secure it with the twine.
Bake for 10 minutes. Transfer the bags to 6 dinner plates.