Savory Beef Steak Lettuce Cups with Grilled Pineapple Relish

Ingredients

• 1 beef Flat Iron Steak (about 1-1/2 pounds)
• 3/4 cup sliced green onions, divided
• 1/3 cup reduced-sodium soy sauce
• 1/4 cup fresh orange juice
• 1 teaspoon grated orange peel
• 1 teaspoon hoisin sauce
• 1/2 teaspoon minced garlic
• 1/4 teaspoon crushed red pepper
• 4 slices fresh pineapple, grilled (1/4 inch thick)
• 1 cup white beech mushrooms
• 1/3 cup thinly sliced red bell pepper
• 1/3 cup shredded carrot
• 1/4 cup chopped fresh cilantro leaves
• 1/4 cup thinly sliced pickled ginger
• 3 teaspoons olive oil, divided
• 12 to 18 large lettuce leaves, such as Bibb, leaf or iceberg