Mediterranean Tuna Sandwiches

• 4 teaspoons roasted red pepper olive oil
• 4 teaspoons balsamic vinegar
• 8 slices whole grain bread or 8 slices pita bread
• 2 (6 ounce) cans tuna in water, drained and flaked
• 1/3 cup sun-dried tomato packed in oil, drained
• 1/4 cup ripe green olives or 1/4 cup ripe olives, sliced
• 1/4 cup red onions or 1/4 cup sweet Spanish onion, finely chopped
• 1/4 cup red bell pepper, finely chopped (optional)
• 3 tablespoons mayonnaise (optional) or 3 tablespoons low-fat mayonnaise (optional)
• 2 teaspoons capers (more to taste)
• 1/4 teaspoon fresh ground black pepper
• 4 romaine lettuce leaves or 4 curly green lettuce leaves

1. Toast bread if desired.
2. Combine olive oil and vinegar in a small bowl; brush oil mixture evenly over 1 side of each bread slice or inside pita pockets.
3. Combine tuna and the rest of the ingredients (except lettuce).
4. Place 1 lettuce leaf on each of 4 bread slices.
5. Top the lettuce evenly with tuna mixture, and cover with remaining bread slices.
6. Serve immediately.

red pepper, balsamic vinegar, bread, water, tomato, green olives, red onions, red bell pepper, mayonnaise, capers, fresh ground black pepper, green lettuce

Taken from www.food.com/recipe/mediterranean-tuna-sandwiches-219820 (may not work)