Easy Sliced Steak Sandwich

A friend recently asked me for my Sliced Steak sandwich recipe.  She said it was the best Sliced Steak sandwich she had ever had.  I was kind of surprised because in this recipe I take advantage of so many shortcuts.  But, she is right.  It is really good.  Hope you enjoy it!
5 large garlic cloves
1 tablespoon salt
1/2 cup dry red wine
1/4 cup balsamic vinegar
1/4 cup soy sauce
1 tablespoon honey
1 teaspoon black pepper
1 teaspoon Worcestershire sauce
1-1/2 pounds top-round London Broil, 1 1/4-inch thick 
1 loaf Frozen garlic bread**
Mushroom gravy (recipe below)
1.)  In a heavy-duty resealable plastic bag  combine all marinade ingredients, mixing well to dissolve the salt. Add the London broil to the marinade. Seal bag, pressing out excess air. Marinate, chilled, turning occasionally, for 4 to 6 hours.
2.)  Heat grill to high. Remove steak from marinate, letting excess drip off, and grill on an oiled rack , for 7 to 9 minutes on each side for medium rare.  For medium rare the temperature should not exceed 140 degrees. Transfer steak to a cutting board, cover with foil, and let stand 10 minutes before carving. Cut across the grain. ***See note below***
3.)  Follow the package directions on the garlic bread (or you could put it on the grill with the London broil.
4.)  Cut the garlic bread into servings.  Layer the sliced steak on the bread and ladle some of the gravy on top of the steak.  Serve.

Mushroom Gravy
1 tablespoon butter
1 package sliced mushrooms
1 package McCormick brown gravy
1/2 cup of water
1/2 cup of wine
1.)  In a small saucepan over medium heat.  Melt the butter.  Add the mushrooms and saute until the mushrooms start to brown.
2.)  Add in the rest of the ingredients and whisk until smooth and thickened.

**One girlfriend bought the cheesy garlic bread and loved it!
***I love my steak rare, my husband prefers his well done.  To fix this, pull the meat off for rare, and put slices in the gravy for those that prefer a steak more well done.