I had a bumper crop of zucchini this year so sliced, froze it open on a cookie sheet, then once frozen I placed it into a freezer bag. Some I shredded in amounts needed for zucchini bread, these slices I'm hoping will not be too slimey when thawed for a zucchini pie which comes out more like a quiche. Eggplant is another item that's hard to freeze so we're going to try baking it with a crust on it and then freeze it on a cookie sheet and then into a freezer bag. I find doing it this way helps keep them separate once in a bag and dries them out somewhat. Will be freezing tomatoes this year as I've canned as much as I need as salsa, sauce and soup.