Grilled Cheesesteak Flatbread

Ingredients

• 2 tablespoons olive oil, divided
• 1 pound top round or other lean beef, cut into very thin strips
• 1 tablespoon Worcestershire sauce
• 1 tablespoon Cabot Salted Butter
• 8 ounces mushrooms, sliced
• 1 large onion, halved and thinly sliced
• 1 green bell pepper, thinly sliced
• 1 red bell pepper, thinly sliced
• 6 mini naan breads or flatbreads
• 8 ounces Cabot Vermont Sharp Shredded Cheese, (2 cups)
• Green onions, sliced, for garnish