Here are my favorite recipes:
Bruschetta in a Jar
Diced Tomatoes
Zesty Salsa
Pasta Sauce (I adapt this one by leaving out the tomato paste and adding in an onion, minced, and adding fresh chopped parsley, salt and pepper)
Tomatoes are one of the easiest of summer's bounties to can, because you can water bath can them. A water bath is simply a large pot of boiling water that the filled jars are placed in and boiled for a predetermined amount of time. Water bath canning can only be used for fruits and veggies which are acidic. Apples, tomatoes, pears, and berries can all be water bath canned. 
Pressure canning is the other canning method. It does require a pressure cooker, which can be useful to a home cook, but is not usually a necessity in most kitchens. During this canning process, pressure and heat are used to kill any bacteria that may be lurking in the jars so your goodies will be safe to eat all year. If you're lucky enough to have a pressure cooker, try our favorite vegetable soup recipe found HERE. We were able to use tomatoes, carrots, parsley and green beans from our garden to make it. Even with the investment in large jars this year, our homemade soup is cheaper than store bought.
We also love to freeze our veggies. We found corn at 20 cents an ear locally and boiled it up, cut it off the cob and froze it. Each cob yields approximately 1 cup of cut corn. We packaged our corn in 2 cup increments - approximately the same as a can of corn. Our freezer bags of corn only cost about 40 cents to make up compared to the $1.00 can of corn from the store.
Canning and freezing your veggies while they are at low prices allows you to create a stockpile of homemade goods while keeping the costs down. Your taste buds and your wallet will thank you for taking the time to do this.
