Slice a baguette (or two small ones) into thin slices and place them on a baking sheet. Brush each slice with some olive oil.
Bake in the oven for 5-7 minutes. Flip over and continue to bake for 3-4 minutes.
Remove from the oven and immediately rub the hot crostini slices with the halved garlic cloves, cut side down. Repeat with the remaining crostini and garlic halves.
Meanwhile, combine the diced tomatoes, fresh basil, garlic slivers, olive oil, crushed red pepper flakes, and sea salt & freshly cracked pepper to taste. Mix until well combined.
Serve the tomato basil salad with the garlic crostini. Enjoy.