Tuna Niçoise Sandwich – Canyon Bakehouse

Ingredients

• ¼ Red onion, thinly sliced
• 1 Clove Garlic, sliced
• ¼ C. Red Wine Vinegar, divided
• 1 tsp. Salt
• 1/3 C. Niçoise or Kalamata olives, pitted and minced
• 1 Tbsp. Capers
• 1 Tbsp. Fresh Parsley
• 2 Tbsp. Olive Oil
• 1 tsp. Dijon mustard
• 6 oz. Tuna, packed in oil, drained and flaked
• 1 Small Tomato, thinly sliced
• 2 Hard-boiled eggs
• 2 Canyon Bakehouse Burger Buns, lightly toasted