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Low-carb sardine ceviche in a bowl with avocado, tomato, red onion, cilantro, and lime juice ready to mix

Sardine Ceviche

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Ingredients Method Notes

Ingredients
  

  • 1 –2 cans sardines in olive oil drained, reserve a little oil
  • 1 large ripe tomato finely diced
  • ½ small red onion finely diced (soaked if you want milder flavor)
  • ½ cup fresh cilantro chopped
  • Juice of 3–4 limes don’t skimp
  • 1 ripe avocado diced
  • Salt and black pepper to taste
  • Adjusted Heat:
  • Optional: 1–2 tablespoons very finely minced jalapeño or less, to taste
  • Optional Extras: Tajín chili flakes, hot sauce, extra cilantro

Method
 

  1. Drain sardines gently, reserving a teaspoon of the olive oil. Flake into a bowl—keep some texture.
  2. Add tomato, red onion, cilantro, and a small amount of jalapeño (if using).
  3. Squeeze in fresh lime juice, season with salt and pepper, and toss gently.
  4. Let sit for 5–10 minutes so the flavors blend.
  5. Fold in avocado right before serving.
  6. Drizzle with reserved oil, garnish, and serve immediately.

Notes

You’re getting protein, healthy fats, and fiber all in one bowl, which is what actually helps stabilize blood sugar—not just “low carb” alone. This is simple, sustainable, and something you can realistically keep in your routine.