1.Chop zucchini in pieces of 3/4 inches.
2.In a slow cooker, put stewed tomatoes, onion, corn, green chilies. Oregano, sugar and chopped zucchini.
3.Cover the cooker and cook the ingredients on HIGH heat for 2-3 hrs.
4.Once zucchini is cooked, remove the cooker from the heat.
5.Serve hot in a dish seasoned with salt and pepper.