All you need is

favorite pasta
1 tin tomatoes
1 onion
2 cloves garlic
handful of fresh herbs, basil, parsley, thyme, small amount rosemary, marjoram or oregano.

I love a simple tomato sauce. Sweat an onion and garlic, throw in a tin of tomatoes chopped or broken up, and a whole heap of fresh herbs (leave basil and parsley if using till the end). Simmer for 15 min or until tomato is cooked and serve on top of pasta with loads of fresh parmesan.

If you want something a little extra throw in some olives, anchovies or chorizo.