Well, raw is good. We try to start every meal with either a salad (dark greens, not iceberg lettuce, with other veggies added depending on what we have, and maybe some chopped apple or nuts too) or veggies and dip (with peppers, carrots, celery, mushrooms, cucumber slices). Or sometimes in winter we'd have a vegetable soup as a starter.
If we are cooking vegetables separately, we usually steam them. If I want to add some extra flavour to them, I might top them with a little salad dressing - using different flavours means lots of options.
You can mix vegetables into a lot of things as well. Making a pasta dish? Add plenty of chopped peppers, celery, etc. to the pasta sauce. Doing meatloaf? Chop up lots of onions and other veggies and add them to the meat mixture. Try to think about the different meals you make and ways to add more vegetables.
Teresa