In a mixing bowl, combine the tomatoes, diced cucumber, red onion, dill weed, red wine vinegar, olive oil, and sea salt.
Toss well and set aside to allow the flavors to come together.
In a separate bowl, mix all of the tzatziki ingredients until well combined, then set aside.
To assemble, spread the hummus evenly onto a plate or serving platter.
Layer the tzatziki over the hummus, followed by the tomato and cucumber salad.
Top with olives and sprinkle with feta cheese.
Finish with a drizzle of olive oil and a light sprinkle of Greek seasoning, if desired.
Serve with pita chips, warm pita bread, or fresh cucumber slices.