I've fried them like potatoes.
The first time that happened, I had "lightly scorched" them - and my family liked them better that way than steamed. They started out to be steamed - I add butter to the vegies - but most of the water had cooked off by the time I wandered back to watching them. So - they were salvaged and pronounced to be better than "just steamed".
I've also added them to chili - grated.
Last night I had some leftover rice, one lonely zucchini, added some carrots, green pepper, onion, broccoli, garlic - seasoned it with powdered ginger and soy sauce and added some scrambled eggs - awesome fried rice.
If cut up before overly seedy, they are quite good dipped in a vegetable dip and eaten as a raw vegetable.
I have also done the "breaded" ones -