Mix together the chopped parsley, diced cherry tomatoes and red onion. Add the olive oil and lemon juice and toss to mix well. Season with salt and pepper.
Tahini sauce:
Add the tahini, water, lemon juice and sea salt to a blender and blend until smooth
For the bowls:
Divide the tomato-parsley salad, falafel, sliced cucumber and black olives between 2 bowls. Drizzle with tahini sauce.