Sweet Potato & Tuna Salad

Ingredients

• 1 medium sweet potato (peeled and diced into cubes)
• ½ cup red pepper (1 pointy red pepper, diced)
• ½ cup celery (about 2 small sticks, diced)
• ½ cup dill pickles (or gherkins, diced)
• ¼ red onion (white onion or 1 spring onion/scallion, diced)
• 8.8 oz tuna (tinned in brine, 250 grams)
• ¼ cup mayonnaise
• 1 teaspoon Dijon mustard
• 2 tablespoons lemon juice
• ¼ teaspoon sea salt
• A pinch of pepper