Toss veggies in 1/3 each of the dill, lemon juice, lemon zest, garlic, salt, pepper and a bit of olive oil. Roast on grill or grill pan, turning occasionally until cooked all the way through. Set aside.
In a food processor, pulse together the chickpeas, 1/3 of the garlic, lemon juice, salt and pepper. If too thick, thin out with a bit of the chickpea liquid and a bit of olive oil. Adjust seasoning and set aside.
Serve kebabs with the hummus, quartered pita and rice.