Vegan Niçoise Salad Sandwich (Pan Bagnat)

Ingredients (for 4 servings)

• 6 whole — Potatoes
• 4 whole — Green Beans
• 3 tbsp — red wine vinegar
• 3 tbsp — Nicoise olives
• 1 tbsp — coconut aminos
• 1 tbsp — capers
• 2 clove — Garlic
• ¼ tsp — black pepper
• 15 oz — chickpeas
• ½ package — Artichokes
• 2 whole — whole wheat French bread
• 4 slice — Onions
• 1 whole — roma tomato
• 2 tbsp — Tarragon