I usually don't have much luck growing zucchini as after about a couple weeks they just rot and die on me but this year is different for whatever reason. I'm still picking zucchini as we speak. Think everyone in my neighborhood has gotten some from me plus some in my congregation. My sister tried an experiement making a zucchini casserole. She pan fried the zucchini slices first. She added Italian sausage, green peppers, mushrooms, seasonings and diced tomatoes. Put them all into a casserole dish, covered them with a packaged stuffing mix and baked. The last 15 minutes she covered the entire mixture with mozerella (spelling) cheese. Not bad for an experiement.
I usually just slice my zucchini lengthwise, then chop them up, put them on a cookie sheet to freeze before placing them in a freezer bag later in the day. I normally just make zucchini bread. I don't peel them or grate them as my mixer or food processor will chop them up more. I also will throw them in when making my squash or tomato soups as both gets pureed anyway. No one will be the wiser.