Easy lentil and bean nachos

• 2 tablespoons vegetable oil
• 1 brown onion, finely chopped
• 2 garlic cloves, crushed
• 1 red capsicum, finely chopped
• 400g can lentils, drained, rinsed
• 2 x 400g cans diced tomatoes
• 1 tablespoon Mexican chilli powder
• 2 teaspoons ground cumin
• 400g can red kidney beans, drained, rinsed
• 200g packet corn chips
• 100g fetta, crumbled
• 1/2 cup sour cream
• Fresh coriander leaves, to serve

Guacamole

• 2 avocados
• 2 tablespoons lime juice
• 1/2 teaspoon ground cumin
• 1/2 small red onion, finely chopped
• 250g cherry tomatoes, quartered