The leek soup is way too oniony & salty for me, but when I made zuchini cakes, like potato pancakes, it was much milder.
shred at least a cup of zuchini
finely chop mushroom, green pepper and whatever else you like
1 egg white
1 packet of leek soup and about 1/4 the water
pepper (no salt!) and whatever spices you like
spray some non-stick aluminum foil, make pancakes as big as you like,
bake in a hot oven - 425F until golden. It took me about 30 minutes.
I tried frying them in a pan and they just stuck, but the foil works nicely.
They get a little crispy - doesn't last long but at least it's edible!

)