Potato Salad with mustard and yogurt

Ingredients

• Potatos (1 lb waxy) cooked and cubed
• 1 red onion
• 1/2 bell pepper
• 2t parsley
• 2t mint
• 1t mustard
• 1/2 t cayenne pepper
• 1 t capers
• 1 c. greek yogurt
• 2 minced anchovy fillets or a bit of fish sauce + salt
• 1/2 cuke
• 1/2 t garlic