Finely dice the cucumbers, seeded tomatoes, and red onion into uniform 1/4-inch pieces to ensure consistent texture.
Place the diced vegetables into a large non-reactive mixing bowl.
Sprinkle the dried mint over the vegetables, crushing it between your palms to release the aromatic oils.
Add the fresh lime juice, extra virgin olive oil, salt, and black pepper to the bowl.
Toss the ingredients thoroughly until the vegetables are evenly coated with the dressing.
Allow the salad to marinate for at least 15 minutes before serving to let the salt macerate the vegetables and the flavors to integrate.