From the start, I have to state that this is my Romanian Aunt Anca's recipe and I fell in love with it from first taste. It's low in fat, full of fiber and vegetables, surprisingly sweet and savory at the same time, and absolutley delicious. This also fits really well in the "easy peasy" department as you don't have to babysit it much and it practically makes itself.
2 leeks, white part and a little of green, cleaned and chopped fine
1/2 zucchini, cubed (optional)
handful of peas
water to cover
1/4 cup chopped dill, saved for the end
Combine leeks, zucchini and peas and cover with water. Bring to a boil and cook until tender. You can blend 1/2 of it with an immersion blender until smooth, or leave it as is, chunky. Add in the dill, and season to taste with salt & pepper.
You can easily add anything else to this soup you'd like: a potato, carrots, celery, etc. Enjoy and experiment.