Prepare the ingredients as instructed above.
Cook the quinoa: Prepare according to the package instructions. Season with salt to taste and cover to keep warm.
Grill the chicken: Heat a grill or griddle pan over medium heat. Drizzle the chicken with olive oil and season both sides with paprika, garlic powder, salt, and black pepper. Grill for about 6 minutes per side, or until it reaches an internal temperature of 165°F (74°C). Let rest for 3 minutes, then slice into bite-sized pieces.
Make the sauce: In a blender, combine garlic, cilantro, cumin, olive oil, lemon juice, and Greek yogurt. Blend until smooth, adding a few drops of water to thin if needed. Season with salt and pepper to taste.
Prepare the spritzer: In a pitcher, combine pineapple juice, orange juice, and sparkling water. Stir gently and refrigerate or serve immediately over ice.
Assemble the Buddha Bowl: Spoon the quinoa into bowls. Top with grilled chicken, tomato, cucumber, avocado, feta cheese, and red onion. Drizzle with the prepared sauce.
Serve with a side of fresh mango and pineapple orange juice spritzer.