1. Cook the pasta in plenty of salted water, adding a little oil during cooking to prevent it from sticking later.
2. Once cooked (preferably al dente) and before draining, add a little cold water to stop the cooking process.
3. Meanwhile, wash, clean and cut the pepper into strips (possibly keeping some strips for presentation); wash and cut the tomatoes into quarters or halves (according to taste) and the feta into cubes. Peel and cut the cucumber into thin slices; pit the olives (if not already pitted).
4. Pour all the ingredients into a large bowl (which will also contain the pasta later) and season with a little oil and salt.
5. Once the pasta is ready, pour it into the bowl with the cut ingredients, add a little more oil and season with balsamic vinegar.
6. Stir everything together and let it marinate: the longer it sits, the better it will taste.
7. Before serving, garnish with some pepper strips and some cherry tomatoes.
Notes
Add some canned tuna in oil for an extra flavor boost.