The majority of Roma tomatoes come from Mexico, and are usually called “Roma” tomatoes. But many countries around the world also grow this variety of tomato. How to Prepare Roma Tomatoes Roma tomatoes can be prepared in a similar way to other tomatoes. The most common method is to slice Roma tomatoes and add them to pasta dishes or sauces, or to toss with olive oil, salt, and pepper. However, you can also cut Roma tomatoes into wedges or cubes, place them on a baking sheet, and bake them until they’re tender. The cooking time will vary depending on the size of your tomatoes. The smaller the Roma tomatoes, the quicker they cook. Small Roma tomatoes can be easily cut into wedges or cubes and baked. Larger Roma tomatoes will need to be sliced. If you want to avoid the work of cutting Roma tomatoes, you can just add them to a baking dish. If you do this, make sure you don’t overcrowd the pan.