Pan-Grilled Tilapia with Tomato and Onion Relish

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Whole tilapia pan-grilled to a crisp finish, topped with a fresh, tangy tomato and onion relish bursting with Filipino flavors. This filipino-inspired seafood ready in about 25 minutes pairs whole tilapia, cleaned and scaled, salt, ground black pepper for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 280 calories and feeds 3, 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.

Prep: 10 min Cook: 15 min Serves 3 Filipino cuisine 280 cal/serving
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Ingredients

Instructions

  1. Step 1: Pat dry 1.5 pounds whole tilapia and season inside and out with 1 teaspoon salt and 1/2 teaspoon ground black pepper.
  2. Step 2: Heat 3 tablespoons vegetable oil in a large non-stick skillet over medium heat. Place the tilapia carefully in the pan and cook for 6-7 minutes on each side until the skin is crisp and the flesh flakes easily with a fork.
  3. Step 3: While the fish cooks, combine 1 cup diced ripe tomatoes, 1/2 cup thinly sliced red onion, 3 tablespoons calamansi juice, 1 teaspoon sugar, and 2 tablespoons chopped fresh cilantro in a bowl. Mix gently and let rest for 5 minutes to meld flavors.
  4. Step 4: Transfer the grilled tilapia to a serving plate and spoon the tomato and onion relish evenly over the top. Serve immediately with steamed rice.

Equipment for this recipe

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Frequently asked questions

How long does Pan-Grilled Tilapia with Tomato and Onion Relish take to make?

Total time is about 25 minutes (10 min prep + 15 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-Grilled Tilapia with Tomato and Onion Relish?

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 salt from drying out.

Can I substitute ingredients in Pan-Grilled Tilapia with Tomato and Onion Relish?

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-Grilled Tilapia with Tomato and Onion Relish for a different number of people?

The recipe is written for 3 servings. Multiply each ingredient by (your serving target / 3). 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-Grilled Tilapia with Tomato and Onion Relish?

Filipino seafood 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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