Pan-Seared Fish Tacos with Pickled Red Onions and Avocado Crema

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Delicate fish fillets seared until golden and served in warm corn tortillas with tangy pickled onions and creamy avocado sauce. This mexican ready in about 28 minutes pairs Cod fillets, Corn tortillas, Red onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

★ 4.4 (10 ratings) Prep: 20 min Cook: 8 min Serves 4 Mexican cuisine 320 cal/serving
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Ingredients

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Instructions

  1. Step 1: Prepare pickled onions: In a small bowl, whisk together 3 tbsp white vinegar, 3 tbsp water, 1 tsp sugar, and 1/4 tsp salt. Add 1/2 cup thinly sliced red onion and stir to coat. Let sit for 15 minutes.
  2. Step 2: Make avocado crema: In a small bowl, combine 1 mashed avocado, 1 tbsp lime juice, 2 tbsp chopped cilantro, and 1/4 cup Greek yogurt. Season with salt and pepper to taste.
  3. Step 3: Season cod: Pat 1 lb cod pieces dry. Rub with 1 minced garlic clove, 1/2 tsp salt, and 1/4 tsp black pepper.
  4. Step 4: Heat 1 tbsp olive oil in a large skillet over medium-high heat. Add the seasoned cod and cook for 3-4 minutes per side, until golden and cooked through.
  5. Step 5: Assemble tacos: Place a cod piece on a warm tortilla, top with pickled red onions, and drizzle with avocado crema.

Frequently asked questions

How long does Pan-Seared Fish Tacos with Pickled Red Onions and Avocado Crema take to make?

Total time is about 28 minutes (20 min prep + 8 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Pan-Seared Fish Tacos with Pickled Red Onions and Avocado Crema?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep cod fillets from drying out.

Can I substitute ingredients in Pan-Seared Fish Tacos with Pickled Red Onions and Avocado Crema?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Pan-Seared Fish Tacos with Pickled Red Onions and Avocado Crema for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Pan-Seared Fish Tacos with Pickled Red Onions and Avocado Crema?

Mexican mexican like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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