(The pics from the following recipe are from last year and I never managed to post them)
When I studied in Padova, Italy, my house mate from Bari in Southern Italy used to bring the most delicious pickled vegetables from her trips home. Since then I have been dreaming of the yummy taste of olive oil, herbs, garlic and vinegar. Now that I tried it it turned out to be quite easy and a good alternative to freeze the vegetables when you harvest a lot of them every day. You can even use those that have grown too much and tend to have a rather stiff peel.
spices as you please (pepper, chili, bay leaves, and garlic are the base. You can add whatever you like)
2. Mix water and vinegar half and half. You can add bay leaves and some aceto balsamico for taste. When the mixture is boiling, add the zucchini and cook for 2-5 min. They should not be completely cooked.
3. Let the zucchini dry on a towel, then fill layers of zucchini and spices alternately into a sealable jar. Add olive oil until it covers the last layer of zucchini. This is absolutely important, otherwise the vegetables will rot. Leave it for 3 weeks before consumption.
The pickled zucchini last several months without any problem. Just make sure they are always covered with oil.