Add the hard vegetables (potatoes, zucchini) and saute them.
Add the cubes of eggplant and stir gently.
Add salt, pepper, oregano and stir gently.
Add the rice and stir.
Add the tomato juice and water and let it boil in a medium heat for about 20 minutes.
Stir gently often so the rice does not stick to the bottom of the pot.
As long as the rice soften, the dish is ready.
Tips:
Because the eggplant is getting black, you can cut it into cubes at the last moment.
You may need to fill out more water so the rice not to stick in the pot.