Steamed is more nutritious but yes, boiling is safer, especially in broccoli where anything could be hiding. I have seen things in broccoli that make me want to put ivermectin dressing on it.
If you ever saw the area this stuff is grown...
In Yuma, right next to the border.
They jump the border, take a dump in the feild and continue on.
That feild is then supposed to be condemned and the crop destroyed.
But, they cant always know untill its to late.
Do like we said.
Head lettuce...take off the outer leaves. We have a neighbor who even puts it under a black light.
The rest of these veggies like cucumbers, etc, can be washed and peeled.