Add spelt and water to a pressure cooker. Cover and lock pressure cooker. Place over high heat until steam begins to build and steadily escapes. Lower heat to medium-low and cook for 15 minutes. Remove from heat; allow all the steam to release. Remove lid and drain.
In a large bowl, combine red capsicum, carrots, red cabbage, onion, chickpeas, olive oil, vinegar, lemon zest and juice from 1 lemon. Mix in spelt.
In another bowl, toss kale with remaining lemon juice and salt. Massage gently with your hands for a few minutes to soften the leaves, and then stir into spelt mixture. Season to taste with salt and pepper.
If you don't have a pressure cooker, simmer spelt in the same amount of water, covered. Cook for 40 to 60 minutes or until tender.