For vegetables, you could get some cook books and do some experimenting.... You can mix vegetables with brown rice and spices. I like Asian foods. They seem to do a good job of preparing the vegetables.
With fresh fruits, you can make great tasting fruit drinks.
Here's one: Take three ripe bananas with about a 1/2 a cup of milk, a 1/2 cup of water, with five cherries (after you remove the seeds) and put them in a blender. Make a "milk shake" by mixing them all up in the blender. You'll have a great tasting drink that tastes similar to ice cream (but it's all natural - without the added processed sugars). You can add ice cubes instead of water, if you want it really cold.
With the fruit drinks, you can experiment with quite a number of combinations. You can add more milk or water or different types of fruits. I've even added ground-up pistachio nuts to the fruit "milk shakes", and it tastes great!!!