Barb's Russian Picnic Salad - Lavender and Lovage

Ingredients

• 500g baby new potatoes (quartered and boiled in their skins until soft)
• 100g frozen or fresh green beans (cut into 3cm lengths and boiled until cooked)
• 100g frozen peas (boiled until cooked)
• 100g grated carrots
• 213g tin of tuna chunks in brined (drained)
• fresh dill, chopped (about 1 tablespoon + some for garnish)
• fresh parsley, chopped (about 1 tablespoon + some for garnish)
• 4 free-range eggs (hard-boiled, shelled and cut into quarters)
• juice of 1 lemon
• 6 tablespoons mayonnaise
• 1 to 2 cloves garlic (peeled and minced)
• salt and pepper
• 6 gherkins (sliced)
• 1 tablespoon capers (drained)
• 10 black olives (stoned and halved)