Chop the zucchini, asparagus and leek into 1" pieces. Roughly chop the basil.
Fill one basket with the zucchini, asparagus and leek. Using the measuring bowl, fill the correlating heating tank to a level 3 with water.
Fill the grain insert with the pasta and water. Using the measuring bowl, fill the correlating heating tank to a level 3 with water.
Lock both bowls in place and turn babycook on.
Run steam cycle for both baskets.
Discard cooking juices and transfer the contents of the zucchini basket along with the basil and lemon juice into the blender and pulse in 3 second bursts until you reach your desired consistency.
Mix 1/2 of the vegetable puree with the cooked pasta and store the remaining puree for future use.
Sprinkle with parmesan and serve.