Preheat the oven to 325°.
Cut the bread into cubes. Place on a parchment lined baking sheet.
Spray with olive oil and season with garlic, salt & pepper. Bake for 15 minutes until golden brown.
While the bread is toasting, prep the salad ingredients and set aside in a large bowl. Starting with the cucumber - peel and halve the cucumber. Use a spoon to remove the seeds, then slice.
Clean the tomatoes and cut them into large bite-sized chunks. Halve the cherry tomatoes.
Remove the outer skin of the red onion and thinly slice the red onions. Halve the slices.
Clean the basil leaves using a salad spinner. Chiffonade: Take a few leaves and stack them on top of each other. Roll into a tight cylinder and slice the basil leaves as thinly as possible.
Prepare the dressing: in a small measure cup, whisk together chopped fresh garlic, vinegar, olive oil, sea salt, and pepper.
Gently blend all the salad ingredients (except the bread). Stir in the dressing.
When ready to serve, add toasted bread to the serving bowl and gently stir into the tomato salad mixture. It is best to serve within a half hour of mixing.