Brilliantly Good Beef Chilli

• 2 tbsp extra virgin olive oil
• 2 cloves garlic, crushed
• 2 red capsicum (pepper)
• 2 brown onions
• 800 g beef mince
• 70 g Taco spice mix
• 800 g diced tomato, tinned
• 800 g tin black beans
• 800 g lentils