There are some days where even though you spend the whole day cooking, actually eating just doesn't come into it, I don't feel like looking for something new to make, and honestly the simpler the better, so go is fruit smoothie.
The one great trick to smoothies, the freezer, and it's frozen fruitiness. Frozen fruit is much more affordable than the fresh variety, and it add body without taking away from flavor. Never use ice in your fruity smoothies again,
1 cup frozen mango
1/4 cup milk
1 tbsp sugar or honey
Blend together, add extra milk, if things don't move around enough, though I've found shaking the machine often moves things around again.