Salmon tart with caper wasabi creme fraiche

Ingredients

• Salmon tart
• 2 sheets savoury pastry
• 2 tablespoons olive oil
• 1 leek, sliced
• 2 cups spinach, chopped
• 1 cup watercress
• 3 eggs
• 1/2 cup cream
• 1 teaspoon salt
• 1/4 teaspoon cracked pepper
• 200 grams smoked salmon
• Caper wasabi crème fraîche
• 1/2 avocado, diced
• 1 tablespoon capers, chopped
• 1 lemon, juiced and zested
• 1 tablespoon parsley, chopped
• 1 tablespoon fennel, chopped
• salt and pepper
• Cucumber salad
• 1 cucumber
• 4 tablespoons picked fennel fronds