Canned Sardines with Avocado and Capers
Prep
5 mins
Total
5 mins
Serves
2
Calories
420 kcal
Why This Works for Intermittent Fasting
Sardines are one of the most nutrient-dense foods you can eat during an eating window. A single can provides over 20g of protein, a full day's worth of omega-3 fatty acids, significant B12, and calcium from the soft edible bones — all with zero carbohydrates. Paired with avocado, which replenishes potassium and magnesium lost during a fast, and capers, which add polyphenols…
June 2, 2026
Why This Works for Intermittent Fasting
Sardines are one of the most nutrient-dense foods you can eat during an eating window. A single can provides over 20g of protein, a full day's worth of omega-3 fatty acids, significant B12, and calcium from the soft edible bones — all with zero carbohydrates. Paired with avocado, which replenishes potassium and magnesium lost during a fast, and capers, which add polyphenols and a sodium hit for electrolyte balance, this is a complete meal that requires no cooking and is ready in under five minutes.
Ingredients
For the sardines:
- 2 cans sardines in olive oil (about 120g each), drained
- 1 large ripe avocado
- 2 tbsp capers, drained
- 1 small shallot, finely diced
- 2 tbsp fresh flat-leaf parsley, roughly chopped
- Black pepper to taste
For the dressing:
- 2 tbsp extra-virgin olive oil
- Juice and zest of 1 lemon
- ½ tsp Dijon mustard
- Salt to taste (taste first — capers are already salty)
To serve (optional):
- Mixed salad leaves or cucumber slices
Instructions
- Drain the sardines and arrange them on a wide plate or shallow bowl.
- Halve the avocado, remove the stone, and scoop the flesh into rough chunks. Arrange alongside the sardines.
- Scatter the capers and diced shallot over the top.
- In a small bowl, whisk together the olive oil, lemon juice, lemon zest, and Dijon mustard until combined.
- Pour the dressing evenly over the sardines and avocado.
- Scatter the chopped parsley over the dish.
- Finish with black pepper. Taste before adding salt — the capers and sardines carry enough salt for most people.
- Serve immediately as is, or on a bed of salad leaves with cucumber slices on the side.
Nutrition Per Serving
| Nutrient | Amount |
|---|---|
| Calories | 420 kcal |
| Protein | 32g |
| Carbohydrates | 5g |
| Fat | 32g |
| Fibre | 5g |
| Sugar | 1g (natural) |
Fasting Compatibility
Best for: 16:8, 18:6, and OMAD. Because there is no cooking involved, this meal is particularly well suited to days when you break a long fast and do not have the energy or appetite to stand over a stove. Sardines provide an unusually dense hit of nutrients in a very short eating window — the omega-3 fatty acids support the anti-inflammatory processes fasting initiates, and the calcium from the soft bones is an easy way to hit your daily requirement without dairy. For OMAD practitioners, adding a side of roasted vegetables or a second avocado turns this into a complete one-meal-a-day plate.
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This recipe is for informational purposes only and is not medical advice.
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