For a more crunchy salad, roast the breadcrumbs in the oven at 250 degrees F (120 degrees C) for 10-15 mins.
- Whisk oil, lemon juice, garlic, salt and pepper in a large bowl. Add tomatoes, bread, onion, basil and capers. Toss to combine.
- Let the salad sit for about 5 minutes to allow bread to absorb the dressing's flavours, stirring occasionally.
- Add sardines and stir well.
- Serve at room temperature.