Easy vegan summer tostadas

Ingredients

• 4 limes, juiced
  
• ¹/₄ cup + 1 tbsp freshly squeezed orange juice
  
• ¹/₄ cup coriander, finely chopped
  
• 1 tablespoon olive oil
  
• Pinch of salt
  
• 1 mango, finely diced
  
• 200 grams grape tomatoes, quartered
  
• 2 green spring onions, finely sliced
  
• ¹/₂ red onion, finely diced
  
• 1 red capsicum, finely diced
  
• 1 Avocado, halved and sliced
  
• Tostadas (crispy tortilla chips), as many as you want to eat