This oldie-but-goodie was popular before “sheet-pan dinners” became a thing!

Preheat oven to 450°F. Line a sheet pan with foil.
Mix oil, garlic, paprika, cumin and crushed red pepper in a medium bowl. Pour 1 teaspoon of the spiced oil mixture into small bowl; whisk in mayonnaise and set aside for sauce. Place chicken in prepared pan. Rub 2 tablespoons spiced oil mixture over chicken.
Add chickpeas, tomatoes, and 1/2 cup parsley to remaining spiced oil mixture; toss to coat beans and tomatoes. Pour mixture around chicken. Sprinkle everything generously with salt and pepper.
Roast until chicken is cooked through, about 1 hour 1 Hour. Sprinkle with remaining 1/2 cup parsley. Transfer chicken and chickpea mixture to plates. Serve with sauce.
