In a bowl, combine balsamic vinegar, olive oil, minced garlic, salt, and black pepper to create the marinade.

Cut the steak into bite-sized cubes and add to the marinade, making sure all pieces are well-coated. Cover and refrigerate for at least 30 minutes, or up to 2 hours.

Place a skillet over medium-high heat. Add a splash of olive oil if desired.

Remove the steak from the marinade, allowing excess liquid to drip off. Add steak bites in a single layer and cook for about 2-3 minutes on each side for medium-rare, or adjust to your preference.

Once cooked to your liking, remove the steak bites from the heat and let them rest for a couple of minutes.

Transfer the steak bites to a serving platter and garnish with chopped parsley if desired.

These steak bites pair beautifully with roasted vegetables, a fresh salad, or a side of quinoa for a complete meal.

Leftovers can be stored in an airtight container in the refrigerator for up to three days.