Grilled Flank Steak with Mushrooms Recipe

Ingredients (9)

• 2 pounds flank steak
• Salt
• Extra virgin olive oil
• Black pepper
• 2 pounds mixed mushrooms (if you can, make sure the assortment includes some shiitake mushrooms, they're especially flavorful), cleaned, roughly chopped
• 2 tablespoons butter
• 1/2 cup minced shallots (or onions)
• 1 cup red wine (or beef broth)
• 1 tablespoon minced fresh rosemary