Begin by cutting the chicken breast into 1-inch cubes, ensuring uniform cooking. In a mixing bowl, combine Greek yogurt, olive oil, minced garlic, lemon juice, tomato paste, paprika, salt, and oregano. Toss the chicken in this vibrant marinade until fully coated. Cover the bowl with plastic wrap and refrigerate for at least 1 hour, or up to 24 hours for deeper flavor.

Preheat your grill to medium-high heat (around 400°F). While the grill is heating, thread the marinated chicken onto skewers, ensuring the pieces are spaced evenly for even cooking. Once the grill is ready, place the skewers on it and cook for 5-7 minutes per side, carefully flipping until the chicken is golden brown and reaches an internal temperature of 165°F.

In a large saucepan, heat a splash of olive oil over medium heat. Add finely chopped onions and sauté them for about 5-7 minutes until they turn translucent and fragrant. Stir in the basmati rice, allowing it to toast for 2-3 minutes, then pour in chicken broth and add salt. Bring the mixture to a boil, reduce to low heat, cover, and let it simmer for 15 minutes, or until the liquid is absorbed.

While the rice finishes cooking and the chicken is grilling, prepare your refreshing salad. In a medium bowl, combine diced cucumbers, chopped tomatoes, a drizzle of olive oil, and a handful of fresh mint or parsley. Season with salt and pepper to elevate the flavors. Toss gently until well mixed, and set aside for the vibrant ingredients to meld.

Once the rice is fluffy and the chicken is grilled to perfection, it's time to assemble your Mediterranean Rice Bowl. Start by layering a generous portion of rice in each bowl, followed by placing the grilled chicken tawook skewers on top. Finally, add a scoop of your fresh cucumber and tomato salad.

Enhance your Mediterranean Rice Bowl with a dollop of creamy hummus on top of each serving. If desired, serve with warm naan or pita bread on the side for that extra comfort.