Garlic & Tuscan Herb Tuna Stuffed Roast Tomatoes

Ingredients

• 5 oz. can Genova Garlic & Tuscan Herb Yellowfin Tuna
• 5-6 large tomatoes on vine
• 1/2 cup cooked brown or wild rice
• 2 Tablespoons chopped red onion
• 1 stalk celery, diced
• 1/4 cup shredded parmesan cheese
• 1/4 teaspoon salt, or to taste
• 1 Tablespoon chopped Italian parsley, plus extra for topping
• 1/4 cup olive oil
• 1/4 cup balsamic vinegar
• 1 Tablespoon fresh lemon juice
• 1 teaspoon mustard
• 1 clove fresh garlic, minced
• 1/2 teaspoon salt
• black pepper, to taste