In a medium skillet, heat orange and guava juice.
Add cauliflower, green beans, onion, polenta and bell pepper. Cook for about 5 minutes.
In a small bowl, mix the remaining ingredients, except the guava chunks and add to orange juice and vegetables.
Cook for about another 5 minutes or until the liquid is almost gone and everything is hot. Add guava and cook for two minutes so the guava heats up, also.