Mexican Fried Rice

• 2 tbsp extra virgin olive oil
• 1 large red onion, finely chopped
• 1 cloves garlic, crushed
• 2 tbsp tomato paste
• 400 g tin black beans, drained
• 400 g tin corn kernels drained
• 450 g heat and serve (microwavable) cooked brown rice
• 2 tsp Mexican seasoning
• 250 g tomato, diced
• 1 cup fresh coriander leave, finely chopped
• 1 lime, juiced