Steam broccoli and cauliflower together in a microwave or steamer of your choice with butter and whatever seasonings you like. Toss in a wok with ripping hot olive oil until golden brown on the edges. Make sure to be rough with the broccoli and cauliflower, you want it to be crushed a bit. Shit slaps and it so easy. Idk if it's healthy anymore after all the butter and oil but whatever. you can adjust the butter levels as needed but make sure there's enough oil in the wok
Butter isn't bad for you per-se, it's the quantity that gets you. It's a pretty calorie dense food, and it has a lot of other things in it that, when taken in large quantities will clog up your cardiovascular system.
Used in proper moderation and it's wonderful. Throwing a whole stick of it into a single serving at every meal is probably too much.
Disclaimer: I am neither a health professional, nor a nutritionist.