Ingredients
1-lb boneless New York strip steak, 1-in thick
1/4 tsp each salt and black pepper
1 tsp olive oil
1/2 cup chopped sweet onion
1/2 tsp dried marjoram, thyme, or oregano (based on preferences)
1 tsp minced fresh garlic
1 (10-oz package) sliced baby Portabella mushrooms
1 Tbsp balsamic vinegar
Preparation
Remove excess liquid with paper towels. Tenderize both sides with a meat mallet until you reached desired level of tenderness. Sprinkle with salt and black pepper.
Grill steak over medium heat, about 4 inches from heat. Cook 6 minutes on each side (medium well), adding more time as needed.
Meanwhile, in a large, heavy skillet, heat oil over medium heat. Add onion and marjoram (or other preferred spice) and cook 2 minutes. Add garlic and cook only until fragrant, 30 seconds.
Add mushrooms and stir-fry until soft and glistening. Stir in balsamic vinegar and remove from heat. Spoon mushrooms over steak, plate it on a nice serving platter, and enjoy.