Dinner - Grilled steak, onions and mushrooms

Made our first home cooked meal since we have been back....grilled marinated skirt steak, grilled sweet onion and grilled portabella mushrooms.  Really simple and really tasty.  I took a throw away cup and put in it olive oil, balsamic vinegar, salt and pepper.  Then brought out a silicone brush.  I brushed each piece of meat with just the oil (by not stirring up the cup) and then stirred it up and spread it on the shrooms and onions before putting it on the grill.

Looks so good - doesn't it??!!??