I boil broccoli for a very short time. I add small flowerettes to boiling, slightly salted water, and cook until just tender, but still crunchy.
I boil carrots the same way, and mix with a little butter and dill.
Sometimes I boil spinach, again, adding to boiling water, or I saute it in olive oil with garlic.
I always roast brussels sprouts.
I like raw or boiled mushrooms, but our daughter likes them fried, so I occasionally fry them in onions and butter.
I boil peas and beans, again, adding to salted water for a very short period (beans of course take longer). I like beans plain, but for special occasions, I will add slivered almonds browned in butter.
I also make stir fry with a variety of vegetables. I cook for a short time in very high heat in a wok, with coconut oil, garlic, and ginger, adding each vegetable until almost crunchy before adding the next vegetable. Then I add a mixture of soy sauce, a little hoisin sauce, rice wine vinegar, a little sesame oil, Chinese cooking wine, and corn starch to thicken.