These tomato recipes make eating healthy a cinch. Tomatoes are rich in vitamins and also pack abundant amounts of the lycopene when cooked, a phytonutrient that imbues them with their red color and may... be an extremely powerful agent in minimizing cancer risk and other chronic diseases. Tomatoes are at their peak nutritionally and flavor-wise in the summertime. In the winter, canned tomatoes and cherry tomatoes are great to cook with. When you’re at the market, look for bright, fragrant tomatoes that feel heavy for their size, and yield slightly when pressed. Store tomatoes at room temperature for up to three days and refrigerate when they’re very ripe.