What can I put on my plain pasta to make it taste better?

Just put a little butter on the pasta with some garlic salt. It is very simply but totally delicious. Don't put on too much salt or you will be craving water all night. If you want some more flavor, toss the pasta with some garlic, butter, and vegetables. This will increase the nutritional value and help to fill you up instead of eating just pasta. Broccoli, carrots, and peas all compliment pasta very well.