How to make a Nicoise Tuna Salad – Geedel

Ingredients

• 16 ounces fresh tuna fillets, or tuna steaks
• 4 to 6 small new potatoes
• 6 ounces whole green beans, trimmed
• 4 cups spinach leaves
• 4 hard-cooked eggs, sliced
• 1 red onion, sliced
• Handful olives, chopped
• 2 medium tomatoes, cut into wedges, for garnish
• 1/2 cup extra-virgin olive oil
• 1/4 cup red wine vinegar
• 1 clove garlic, crushed
• 2 teaspoons Dijon mustard