To assemble: Place the rocket, sweet potato, red capsicum, chickpeas, tuna, red onion, avocado, pine nuts and feta cheese in a large bowl. Drizzle over the dressing until just coated, then toss together.
2 cups rocket leaves, 1 sweet potato, 2 red capsicums, 400 g canned chickpeas, 425 g canned tuna, 0.5 red onion, 1 avocado, 0.5 cup pine nuts, 100 g feta cheese