Cut broccoli florets into small florets. Peel and chop any stem pieces that are left.
Put 1/2" water in bottom of large sauce pan or skillet and cover. Place a steamer in pan if you have one. Heat to a low boil and add broccoli. Cover with lid and steam broccoli jut until it is beginning to soften, approx. 3-5 min. Remove broccoli from the pan as it will continue to cook if you don't.
Place softened butter, olive oil, lemon juice and zest and pepper in a small bowl. Mix with a fork and then pour over broccoli. Toss to coat.