Steam the eggplants, zucchini and capsicums for 8-10 minutes until tender.
Allow to cool. Dice the veggies and set aside.
Heat a large frying pan over a medium heat, spray lightly with oil and cook the onion and garlic gently until soft. Add the eggplant, zucchini and tomato and cook for a further 3 minutes. Add the cooked rice, mint, lemon juice, pepper, cinnamon and allspice.