Here's a quick way to make a fresh tasting pasta sauce.
Start with a 24 ounce can of chopped tomatoes. I like to find some good Italian San Marzano chopped tomatoes - I think the flavor is brighter.
Chop 1/2 an onion. (Add chopped red pepper if you wish.) Saute for about 5 minutes until softened. Then add the canned tomatoes and a clove of chopped garlic. Season with salt, fresh ground pepper, dried Italian herbs, and fennel seeds. Cook for a few minutes more, until warmed.
Add your favorite cooked pasta.
Top with fresh parsley and basil. Sometimes I even add some chopped spinach so I can get in a few more healthy vegetables. Finally, put some shredded parmesan cheese on top.