Recipe for potatoes with mushrooms and broccoli! A simple and delicious dinner!

Ingredients:
Potatoes - 350 g.
Cook in salted water for 4 – 5 minutes.
Broccoli – 100 g (cook for about 1 minute)
Mushrooms - 200 g.
Onion - 1 pc.
Vegetable oil
Butter - 20 g.
Salt
Black pepper
Bon appetit!