Quick vegan dessert

I like to take berries, coconut milk and agave syrup and mix them.

I would echo other contributors - frozen slices of banana blended in a Vitamix/blender make a brilliant ice cream. Soy yoghurt and a sweetener (such as maple syrup) makes vegan frozen yoghurt. For vegan dessert recipes I'd definitely recommend a visit to http://chocolatecoveredkatie.com/

Vietnamese coconut milk pudding, they're called Chè. Totally vegan.
Here's one with black-eyed peas,http://wanderingchopsticks.blogspot.com/2008/04/che-dau-trang-vietnamese-white-beans.html
Here's one with fresh corn: http://wanderingchopsticks.blogspot.com/2007/08/che-bap-vietnamese-dessert-soup-with.html

Here's one with bananas:
http://www.foodnetwork.com/recipes/saras-secrets/sweet-banana-and-coconut-milk-soup-che-chuoi-recipe/index.html

vegan rice pudding, if you have cooked rice on hand. If you have more than 15 minutes, you can cook the rice and then make the rice pudding.

I just thought of another. How about almond stuffed dates?
http://www.couldntbeparve.com/2011/01/almond-stuffed-dates-for-tu-bshevat/

I love these vegan "Irish potatoes". http://www.couldntbeparve.com/2011/03/irish-potatoes-and-a-giveaway/
If you are in a hurry you can chill them in the freezer so that they set faster.

Frozen banana in a blender, nice thing you can add a lot of different things to it pumpkin, carrot, cocoa powder, peanut butter or a various of the ingredients I love this for ice cream

For future note, cocoa powder + maple syrup + silken tofu makes a mean vegan chocolate pudding, and it's easier than easy.

One ingredient ice cream is also amazing. I like to make mango lassi with frozen mango chunks and coconut milk, blended, and then a little agave and garam masala added. You can make simple oatmeal raisin cookies substitution canola oil for butter and 1 tbsp ground flax, mixed with 3 tbsp warm water, for your egg. Hope this helps!

Toss one pound cut up strawberries with a tablespoon of balsamic vinegar, tablespoon of sugar and tablespoon of shredded fresh mint. If you can let it marinate for a little bit in the fridge it will enhance the flavors

How about one-ingredient ice cream? http://food52.com/recipes/18742-the-kitchn-s-one-ingredient-ice-cream