1/2 c. olive oil
1 tbsp. grated, fresh Parmesan cheese
freshly ground black pepper
1 sm. red onion, sliced very thinly
1 – 2 tsp. capers, drained and rinsed
1 can tuna, drained
1 tomato, sliced 1/4-in. thick
Kalamata olives, sliced
leafy greens
day old crusty bread
Combine red wine vinegar, olive oil, Parmesan cheese, and black pepper, adjusting to taste as necessary. Place sliced red onion into same container, and let sit while preparing the remaining ingredients. Slice bread in half, and hollow out a portion of the interior. Beginning with bottom piece of bread, layer with vinaigrette-drenched onions. Follow with capers, tuna, tomatoes, olives and leafy greens. If desired, add one more layer of onions, finish with top slice of bread, and press down firmly to make sandwich.
