Steak with red onion relish

Why I Love This Recipe
This will actually work with white wine too, I did that once on accident (don't ask).
Ingredients You'll Need
1lb boneless beef top sirloin cut 3/4" thick
1/4 to 1 teaspoon ground pepper
2 teaspoons of cooking oil (I always use extra virgin olive oil)
1 large red onion thinly sliced and separated into rings
1 7 1/2oz can of tomatoes, cut up
1/4 cup dry red wine
1/2 teaspoon dried sage, crushed
1/4 teaspoon salt
Directions
Cut steak into 4 equal portions rub both sides with pepper.
In a large skillet heat oil over medium heat.
Add steaks and cook about 13 minutes flipping 1/2 way through (or cook to your liking) remove steaks from skillet reserve drippings in skillet.
Keep steaks warm.
In the same skillet cook onion in drippings over medium heat for 5-7 minutes or until crisp-tender.
Carefully add tomatoes, wine, sage, and salt. Bring to boiling.
Cook for 1-2 minutes until most the liquid is evaporated, stirring occasionally.
To serve, arrange steak on plates. Spoon onion mixture on top.