Quick & easy balsamic glazed & marinated steak tips and mushrooms recipe. The marinade for this simple one pan weeknight dinner is SO GOOD. Great for families or just two. Healthy, low carb meals like this are family favorites. You'll need sirloin steak tips (or flank steak or flap meat), soy sauce, balsamic vinegar, garlic, dijon mustard, cremini mushrooms, and butter. You don't even need to turn on the oven - cook it on the stovetop!