Normally, to avoid the zucchini releasing too much of it's excess moisture while cooking, salting and draining it beforehand is a must. However, in this easy recipe for Sauteed Zucchini, it's not necessary to do that. It has such a short cook time and will begin to brown/sear immediately after it touches the hot oil in the pan. Adding salt too soon when sautéeing zucchini will actually result in mushy/soggy zucchini. Definitely add salt but add it towards the end of cooking.