Prepare the Bread:
If your bread isn’t stale, toast it in a skillet or oven until golden and slightly crispy.
Mix the Vegetables:
In a large bowl, combine the tomatoes, cucumber, red onion, and bell pepper (if using). Add capers or olives if desired.
Make the Dressing:
Whisk together olive oil, red wine vinegar, minced garlic, salt, and pepper in a small bowl or jar. Adjust seasoning to taste.
Combine the Salad:
Add the bread cubes to the vegetable mix. Pour the dressing over the salad and toss gently to combine, ensuring the bread soaks up the juices.
Add Basil:
Gently fold in the torn basil leaves just before serving.
Let It Rest:
Allow the salad to sit for 15–20 minutes at room temperature to let the flavors meld together.