Tacos with Curry Walnut Meatballs – DelicioUS!

Ingredients

• 70 g Californian walnuts
• 3 spring onions
• 600 g ground beef
• 1 heaped tsp. red curry paste
• salt, pepper
• 1 mango
• 1 red pepper
• 50 g baby spinach
• 4 tbsp. light balsamic vinegar
• ½ Orange, only juice
• 1 ½ tbsp. honey
• 1 tsp. mustard
• 5 tbsp. olive oil
• 8 taco shells