This grilled tilapia recipe is cooked in foil packets with Cajun-seasoned tilapia fillets, corn on the cob, and vegetables. The fish turns out juicy, tender, and so delicious!
Prep. Preheat the grill to 400˚F. Tear out 4 large heavy duty foil sheets measuring about 12x12, each. Set aside.
Prepare the corn. Add 8 cups water to a cooking pot and set over high heat; bring to a boil. Add in the corn, reduce the heat to a steady simmer, and cook for 10 minutes. Drain.
Combine the vegetables. In a large mixing bowl, add the corn, sliced onions, bell peppers, and garlic. Set aside.
Make the Cajun butter. Melt the 3 tablespoons butter in a separate bowl; stir in ½ tablespoon cajun seasoning, ½ teaspoon salt, and ¼ teaspoon black pepper.
Add the butter to the veggies. Pour the melted butter mixture over the corn, onions, and peppers. Gently toss to combine.
Season the fish. Rub the remaining Cajun seasoning blend all around the tilapia filets. Season them with the remaining salt and pepper.
Prep the foils. Divide the corn mixture between the four aluminum foil sheets. Add a fish fillet to each foil. Dot the cubed butter over the fillets. Bring the edges of the foil together and seal them closed.
Grill. Transfer the tilapia foil packets to the grill and cook for 15 minutes, flipping them once halfway through cooking.
Finish and serve. Remove the grilled tilapia from the grill. Carefully open up the packets away from your face. Serve with lemon wedges.
Notes
Oven Method: Preheat oven to 400˚F and bake the foil packets on a baking sheet for 15 minutes.
Fresh vs. Frozen Tilapia: Fresh fish is ideal, but thawed, patted-dry frozen fish works too.
Substitutes For Tilapia: Any white fish like cod, flounder, red snapper, striped bass, or catfish can replace tilapia.