ok, I make mine with the following all grated:

A couple of potatoes
1 large carrot grated
1 zucchini grated
two eggs
sr flour to thicken a bit and lighten them.
You can also separate the eggs and beat the whites to make them light and fluffy and fold them through and that mkaes them even lighter and fluffier

I also do them and add in lots of other vegies, depending on what i have