It's true that tomato skins and seeds are good for you. It's also true that sometimes including them in the dish you're preparing just isn't going to work well. Many people prefer to make their soups and sauces using fresh tomatoes without the seeds and skins. A little simple preparation will allow you to practically slip those skins right off of the fruit and remove the seeds quickly and cleanly.
Fill a large bowl with enough water to cover the tomatoes. Add enough ice cubes to nearly cover the surface of the water. Allow it to sit for 5 or 10 minutes, until the water feels extremely icy.
Pour enough water to cover the tomatoes in a saucepan and bring it to a rolling boil. Reduce the heat to medium, or enough to keep the water just at a slow boil.
Rinse the tomato in cool running water and pat dry. Use a very sharp, clean knife to cut a shallow cross into the bottom, or blossom end, of. Slice just through the skin and not into the meat of the tomato. Your cuts should be about ½ to 1 inch long, depending on how big the fruit is.
Use tongs to quickly submerge the tomato in the boiling water. Cook for 15 or 20 seconds, then turn the tomato. Cook for another 15 or 20 seconds. This will allow the fruit to heat evenly.
Use the tongs to remove the tomato from the boiling water and immediately plunge it into the ice water, covering it completely. This will halt the cooking process. Let the tomato sit in the ice bath for 5 or 10 minutes, or until it's cool enough for you to handle it.
Remove the tomato from the water and gently pat it dry. The tips of skin at the cut will already be pulling away from the tomato. Grasp a tip of skin and slowly peel it from the flesh of the fruit. Repeat with the other skin tips until the tomato is completely peeled.
Cut the tomato in half from top to bottom. Slice the core out of the top of each section. Cut the halves in half from top to bottom.
Flip a tomato wedge on its back so that the seeds face upward. Slip the blade of your knife between the seeded section and the flesh, and slice in a single motion to separate the two.