Step 1 Preheat oven to 200°C. Line a baking tray with baking paper. Place sweet corn, lettuce and tomato wedges in a large bowl; mix gently to combine.

Step 2 Spray tortillas with olive oil, then sprinkle with Mexican spice mix. Cut tortillas into triangles, place on prepared tray and bake for 8 minutes, or until crunchy, turning chips twice with tongs. Add chips to bowl of salad and mix carefully. Divide taco salad among four plates.

Step 3 Heat beans in a saucepan set over medium heat until warm. Spoon beans onto salad, top with sour cream and serve.