Make Toum (Garlic Sauce): In a blender, combine garlic, vegetable oil, lemon juice, and a pinch of salt. Blend until smooth and creamy. Adjust salt to taste. Set aside.

Prepare Rice with Red Sauce: In a saucepan, combine rice, water, tomato sauce, dried oregano, salt, and pepper. Bring to a boil, then reduce heat to low, cover, and simmer until the rice is cooked and the sauce is absorbed. Fluff the rice with a fork and set aside.

Grill Greek Chicken Kebab and Pita: In a bowl, whisk together garlic powder, dried oregano, lemon juice, and extra-virgin olive oil. Season with salt and pepper.

Thread the chicken pieces onto kebab skewers and brush with the prepared marinade. Grill the chicken kebabs until fully cooked, turning occasionally.

Lightly grill the pita bread until warmed and slightly golden.

Grill Halloumi: If using a grill, brush the grill grates with oil and add the halloumi. If using a grill pan, heat it over medium-high heat, drizzle with oil, and add the halloumi. Cook for about 1 minute per side or until grill marks appear.

Prepare Lemon Sparkling Water: Add lemon slices to the sparkling water.

Assemble and Serve: Place the grilled chicken kebabs on a plate with the rice. Arrange the grilled halloumi on the side. Serve the pita bread with a dollop of toum on the side. Garnish the rice with additional sauce if desired. Serve with lemon sparkling water.