I'm not into canning, so I simmer my garden tomatoes into a sauce to freeze. Saute a little garlic in olive oil, add chopped onion (I don't always do this, but I had some from the garden), add roughly chopped tomatoes and summer until reduced. I don't even take the skins off the tomatoes. Sometimes, I add chopped fresh basil - but I'm saving my limited supply of garden basil for Caprese salads. I pour this into freezer containers and we use this sauce to make spaghetti meat sauce later.
All ready to assemble. Tomatoes and basil from the garden, along with fresh mozzarella. Layer the ingredients, then sprinkle with coarse sea salt. Drizzle with olive oil, balsamic vinegar - or Italian salad dressing. I know the salad dressing isn't traditional, but it's what we had and it was awesome.