It depends on what and how much you grow in your garden. Growing up and even when our kids were young and at home, we grew a large garden to save money. Growing things that store well, like potatoes, squash, carrots, turnips, rutabagas, and other root crops will save you money because they require no very little to no extra processing to store.

Tomatoes, while VERY tasty straight off the vine, often get highly processed into sauces and jarred to preserve. That is time consuming and expensive. But, if you have enough freezer space, you can freeze tomatoes and peppers very easily. But you need enough freezer space for them. Growing string beans are also fairly efficient crops that require little processing to freeze. But, there is still some extra work to be done with them. Sweet Corn take a lot of room to grow enough to make it worth your while preserve.

But best of all is to garden because you want to and you enjoy it. I no longer grow a large garden - me and Grandma don't need much anymore, but I still grow tomatoes and peppers, turnips, green onions, and amaranth. Amaranth is often used as a background plant in flower gardens, but the whole plant is edible. From the roots to leaves to the seeds. It has a wonderful nutty flavor and is stupidly easy to grow.