Tuscan-Style Grilled Tuna Steaks and Grilled Stuffed Portabello Recipe - Food.com

Ingredients

• 4 fresh tuna steaks, 1-inch thick (8 ounces each)
• 1 lemon, zested
• 3 sprigs fresh rosemary
• handful flat leaf parsley
• 3 garlic cloves, crushed
• coarse salt
• black pepper
• extra virgin olive oil, for cooking
• 2 tablespoons balsamic vinegar
• 1 large lemon, juiced
• 2 teaspoons Worcestershire sauce
• 2 tablespoons extra virgin olive oil, plus more for drizzling
• large portabello mushroom cap
• 3 large firm plum tomatoes, seeded and diced
• 2 sprigs fresh rosemary, leaves finely chopped
• 1/2 lb fresh smoked mozzarella cheese, thinly sliced