What are the best ways to cook?

Or if you want you can buy steam bags, pop them in the microwave and steam them. You could wrap in tin foil with some lemon and throw them on the grill as well, greens are easy to cook, it only gets difficult when you are trying to make them unhealthy, i.e. casseroles and cheese sauces and things like that...so should be no problem

I pretty much never cook them. lol I eat salads a lot though.

If you allow yourself a wee bit of fat with them, greens like kale are excellent if you saute some onion in a small amount of olive oil until translucent in a large wok, then add the rinsed greens and put a lid on it. The water from rinsing should be enough to cook them. Open the lid every couple of minutes and stir. When the greens are cooked down, but still fairly bright green, they're done.

Some people prefer to saute with a little bit of broth to save on calories. I recommend the olive oil. You don't have to use much.

Baby spinach tends to glom together, but are still tasty. Collards, kale, mustard greens, chard are all excellent this way. You can also cook greens from the tops of beets (if you buy them) and even radishes. Greens cook down a tremendous amount, so don't be afraid to fill the wok with them.

I like carrots, red peppers and cucumbers raw.

I love roasted root vegetables (turnips, carrots, potatoes, sweet potatoes, beets, etc) with some vegetable oil, cumin salt and pepper.
Asparagus roasted with lemon and olive oil. Cauliflower roasted with parmesan.
Broccoli steamed with lemon and pepper.

I really like sauteing fish and chicken in a little oil then making a simple pan sauce with some wine, lemon and butter.

I'm not expert. Just a southern cook. For greens (collards, mustard, turnip), I buy fresh and frozen. I start with about a tbsp of olive oil. Heat and add 1 small onion sliced thin and crushed red pepper flakes to your liking. Add greens. To add flavor without fat, I use chicken stock instead of water. Season with salt and pepper. Be sure to taste since stocks are pre-salted..

Just my opinion..

For greens, I love to sauté them. Other veggies are great roasted in olive oil and some spices! Changed my whole opinion of brussel sprouts!

What all do you Sauté them with?

Since I was going to agree with her post, I'll answer this. I use a little olive oil (usually a generous spray, sometimes a teaspoon) plus some garlic and maybe onions. I add some salt.

I mostly buy frozen veggies because I am the only one in my house that eats them and they keep longer when they're frozen.

I weigh out my frozen veggies, throw them in a pan on the stove on medium heat with a little sprinkle of salt and a splash of water so they don't stick to the pan. I cook them on medium heat until most of the moisture is gone and they're not watery anymore. I don't add oil or anything, just a little water and stir frequently so nothing sticks. Then I'll take them and mix them in with pasta and sauce, throw them on a flatbread for a pizza, throw them in with eggs/egg whites in a pan to make an omelette, etc. Stuff like that. Makes it easy to eat a huge amount of veggies. Tonight is flatbread pizza actually - so I do peppers, onions, sliced zucchini, and broccoli - all frozen. I put whatever protein and whatever cheese I want on top of the veggies and bake it on the flatbread for like 15 mins til crispy. Then top with some sriracha. Yum.

for me, I usually do broccoli
I bring my water to a boil.
Dump in broccoli florets for 2 min.

and that is it.....nothing else

No kind of spices or anything? Do you usually buy them fresh or frozen?

No typically I don't do anything on them....
You can try Mrs. Dash.

I buy fresh