Freezing tomatoes doesn't work if you are expecting to take them out of the freezer and slice them for sandwiches and salads. But tomatoes can be frozen and used in soups and stews.
It is possible to freeze whole tomatoes. When freezing tomatoes that have been left whole, wash them carefully and seal in a freezer bag. These tomatoes can be used for cooking but will begin to lose flavor and texture in about two months.
For the best results when freezing tomatoes, stew them before freezing. Stew the tomatoes and quickly cool by placing the saucepan in a pan of ice water. Package the stewed tomatoes in meal size containers and freeze. Never add anything such as bread or cracker crumbs to the mixture going in the freezer. Of course, when you need to use some of your frozen tomatoes for a meal, you may add what is needed to complete the recipe. Stewed tomato pulp should store nicely in the freezer and retain good tomato flavor for several months.
Now here is a great tip for freezing tomatoes that just aren't going to ripen before a frost destroys them. Who hasn't heard of fried green tomatoes? If not the actual tomato, then surely you have heard of the movie! Just wash the green tomatoes, slice them and dip in cornmeal, making sure that both sides of the tomato slices are covered. Set the slices on a cookie sheet and set in the freezer until frozen. Then put the frozen slices into meal-size containers and return to the freezer. When you are ready to serve, just pop them out of the freezer, don't thaw the slices, and immediately deep-fry or pan-fry your green tomatoes.