Prepare the ingredients as instructed above.
Cook rice: Prepare according to package instructions. Once tender, fluff with a fork and keep warm.
Marinate chicken: Mix garlic, coriander, cumin, cardamom, paprika, salt, black pepper, lemon juice, and olive oil in a bowl. Add chicken and coat well.
Make garlic sauce: Blend garlic, lemon juice, olive oil, salt, and pepper until smooth and frothy. (For a milder flavor, boil garlic for 3–5 minutes before blending.)
Cook chicken: Grill over medium heat until cooked through and internal temperature reaches 165°F (74°C). Rest 5 minutes, then slice.
Warm pita: Heat in a pan for about 30 seconds per side until soft.
Make mango lassi: Blend mango, yogurt, milk, cardamom, and sugar until smooth. Chill until ready to serve.
Assemble bowls: Divide rice into bowls. Top with lettuce, cucumbers, tomato, red onion, pickles, and sliced chicken. Drizzle with garlic sauce.
Serve the shawarma bowl with warm pita, mango lassi, and baklava.