"The king of canned plant products is the canned tomato. Tomatoes are the ideal use case for canning: a product with a very minimal harvest time is picked at its peak and preserved, so I use canned tomatoes ten months a year, happily. The only time I opt for fresh tomatoes is during the tiny window in summer when the New York, New Jersey, and Pennsylvania fruits are at their peak. There are lots of variation in canned tomatoes. They usually come in either whole, chopped/diced, crushed, and pureed/sauce. Go for the whole ones and cut to your liking. My favorite trick for turning whole canned tomatoes into a puree is to jam my immersion blender right down into the can and go nuts. No extra cleanup!"