Heat a pan up. When the heat it high, throw in the onions.
Cook until onions start to sweat. Add water, 1 table spoon at a time.
Add the eggplant and cook till tender. Add a little water if necessary.
Add the beans and sayote and cook till tender.
Add the tomatoes in last with the cashews.
Put the vegetable mix in a bowl. Drizzle with the olive oil and mix in the basil. Toss till combined. Add salt to taste.
Serve with a side of toasted bread.