Drain and wash the chickpeas. Mix with the remaining ingredients and roast in the oven at 200 degrees for 20-30 minutes until they turn brown and crispy.
Pluck the lettuce into bite-sized pieces. Halve the cherry tomatoes. Halve the cucumber and cut into slices. Dice the avocado. Mix the dressing ingredients and mix into the salad. Spread on bowls and sprinkle with the chickpeas.