I love to cook steak and use the leftovers to make other dishes. Day-old steak is generally better than the original steak itself. The seasonings have had more time to work their way into the meat and infuse their full flavor.
Preheat oven to 400°F.2.
In a saucepan bring vinegar, water, salt and sugar to a boil.3.
In a mixing bowl add all cut vegetables. Pour boiling liquid over the vegetables, cover and let sit for 10 minutes.4.
Spread a liberal amount of pesto on both halves of the rolls. Put sliced steak on one side of each roll and feta cheese on the other.5.
Place the steak-topped sides of the sandwich on a cookie sheet and place in the oven for 5 minutes.6.
Strain the liquid off of the vegetables.7.
Remove sandwich from the oven and top the steak with the vegetables. Put cheese side on top and serve immediately.