Grilled Fish Tacos

Ingredients

• 227 g (½ lb)frozen cod or other mild white fish fillets, thawed
• 15 ml (1 tablespoon)butter, melted
• 1 packet (35.4 g; 1.25 oz)taco seasoning mix
• 120 ml (½ cup)sour cream
• 30 ml (2 tablespoons)milk
• 12hard corn tortilla shells or soft flour tortillas
• 113 g (4 oz; 1 cup)Cheddar cheese, shredded
• As desiredavocado, chopped
• As desiredtomatoes, chopped
• As desiredshredded coleslaw mix
• As desiredgreen onions, sliced

Instructions

1. 1

   Heat the grill

   Heat a gas grill to medium, or prepare a charcoal grill and wait until the coals are ash white.

2. 2

   Season the fish

   Lay the cod fillets in a single layer on heavy-duty aluminium foil. Brush them with the melted butter, then sprinkle with 2 tablespoons of taco seasoning, turning the fillets to coat.

3. 3

   Grill the cod

   Set the foil with the cod on the grill. Cook for 10–12 minutes, until the fish is no longer translucent and flakes easily with a fork.

4. 4

   Mix the sauce

   In a small bowl, stir together the sour cream, milk and remaining taco seasoning. Heat the taco shells according to the packet instructions.

5. 5

   Fill the tacos

   Break the fish into bite-sized chunks and divide it among the taco shells. Sprinkle with the cheese, add toppings as desired and drizzle with the sour cream mixture.

What are grilled fish tacos?

Fish tacos are a much-loved beach food in Mexico, often served with crisp or soft tortillas and fresh toppings. This home-grilled version keeps the fish mild and flaky, with taco seasoning bringing warmth and a creamy, tangy sauce to tie everything together.

The method cooks the fish on foil, so it can be seasoned and grilled without placing delicate fillets directly on the grate. Cheddar and a choice of crunchy, fresh toppings make each taco easy to customise.

Nutrition and macros by portion

The nutrition label shows one serving as written: 440 calories, 25g protein, 35g carbs, 23g fat.

The tortillas and taco shells supply most of the carbohydrates, while butter, sour cream and Cheddar contribute much of the fat. Cod and Cheddar provide protein. Balance the plate with a generous amount of the listed vegetables, such as slaw, tomatoes and avocado.

Choosing the fish

White fish: Cod is mild and flakes readily when cooked, while another mild white fish can be used in its place. Thaw frozen fillets before grilling so they cook evenly within the stated time.

Foil: Heavy-duty foil supports the fillets and helps keep them together as they cook. Arrange them in one layer so they are exposed to the heat consistently.

Seasoning and sauce

Butter and seasoning: Brushing the melted butter over the fish helps the taco seasoning cling. The method uses 2 tablespoons on the fish and reserves the rest of the packet for the sour cream mixture.

Creamy drizzle: Stir the sour cream, milk and remaining seasoning until combined. The milk loosens the mixture so it can be drizzled over the filled tacos.

Getting the fish just right

Doneness: Grill for 10–12 minutes, checking that the fish is no longer translucent and flakes easily with a fork. The exact time can vary with the thickness of the fillets and the heat of the grill.

Flaking: Break the cooked cod into bite-sized pieces rather than mashing it. This gives the tacos an even filling while keeping some texture.

Preparing the tortillas

Shells: Heat the corn shells or flour tortillas according to their packet instructions. Warm tortillas are easier to fill and serve.

Filling: Divide the fish among 12 shells, then add the cheese and toppings before drizzling on the sauce. Add the toppings to suit each diner rather than mixing them into the fish.

Toppings and serving

Fresh choices: Chopped avocado and tomatoes bring soft, fresh contrast, while coleslaw mix adds crunch and sliced green onions give a sharper note. Use any combination, as desired.

Serving idea: Put the toppings and sauce on the table so everyone can finish their own tacos. A simple green salad or extra slaw makes a fresh side.

Recipe notes & tips

• Thaw the fish fully before cooking so it grills evenly.
• Use heavy-duty foil and keep the fillets in a single layer.
• Set aside the remaining taco seasoning for the sour cream mixture.
• Check the fish at 10 minutes and continue grilling only until it flakes easily.
• Heat the tortillas just before serving so they are ready to fill.

Variations

• Change the fish: Use another mild white fish in place of cod.
• Choose soft tortillas: Use flour tortillas instead of hard corn shells.
• Add avocado: Top each taco with chopped avocado for a creamy finish.
• Boost the crunch: Add extra shredded coleslaw mix just before serving.
• Vary the cheese: Use another shredded cheese in place of Cheddar.

Common mistakes to avoid

• Crowding the fish: Fillets may cook unevenly; arrange them in a single layer on the foil.
• Skipping the thaw: Frozen centres can prevent even cooking; thaw the fillets before grilling.
• Overcooking the cod: It can become dry; remove it when it is no longer translucent and flakes easily.
• Using all the seasoning on the fish: The sauce also needs seasoning; reserve the remainder of the packet.
• Filling cold tortillas: They may be less pliable; heat them as directed on the packet.

How to store

Refrigerate leftover fish and sauce separately in covered containers and use within 2 days. Reheat the fish gently until hot, and assemble with freshly heated tortillas and toppings just before serving.

Frequently asked questions