In a bowl, combine the olive oil, tomato paste, paprika, garlic, lemon juice, lemon zest, crushed red pepper, and a large pinch of salt. Add the chicken and toss to coat. Marinate for 15 minutes or up to overnight in the fridge.Meanwhile, make the cauliflower. Preheat oven to 450 degrees F. On a rimmed baking sheet, combine the cauliflower, 2 tablespoons olive oil, and a pinch each of salt and pepper. Arrange the lemons around the cauliflower. Transfer to the oven and roast for 10-15 minutes, or until tender and charred.Remove the charred lemon slices from the baking sheet. Finely chop the lemons, rind and all, discarding any of the seeds. Add half of the chopped lemon to a salad bowl. Add the parsley/cilantro, olives, red wine vinegar, and remaining 1/3 cup olive oil. Season with salt and crushed red pepper flakes. Add the cauliflower, cucumbers, and seeds, and toss well.To make the yogurt, combine the yogurt, grated garlic, and 2-3 tablespoons lemon juice. Season with salt. Taste, adding more of the lemon as desired.Set your grill, grill pan, or skillet to medium-high heat. Take skewers and thread the chicken pieces on. Grill the skewers until lightly charred and cooked through, turning them occasionally throughout cooking, about 10 to 12 minutes total. Alternately, you can roast the chicken at 400 degrees for 20-30 minutes.To serve, spread the yogurt sauce onto plates. Add the cauliflower salad and chicken. Top with fresh herbs and serve with naan. Enjoy!