Place the tomatoes, cucumbers, red onions, green peppers and olives in a large serving bowl. Stir to combine.
Mix the ingredients of the salad dressing together in a small bowl and drizzle over the salad ingredients. Add the feta cheese on top.
Lightly toss to combine, being careful not to over-mix or break up the feta cheese too much.
Notes
Make Ahead: You can make the dressing up to 7 days in advance and you can prepare most of the salad up to 1 day in advance. Storage: Store any leftovers in an airtight container for 2 to 3 days.