Prep the vegetables: Cut half a carrot in half lengthwise, then slice thinly. Slice the onion, and dice the bell peppers and cabbage.
Wash the broccoli thoroughly and cut it into florets along its natural lines.
Portion out 100g of chicken breast and defrost in the microwave for 4-5 minutes (it's okay if it cooks through).
Heat a pan over low heat, add a little olive oil, then add the carrots and stir-fry for 1 minute just to coat them in oil.
Add the defrosted chicken breast (cut into bite-sized pieces) and stir-fry with the carrots.
Add the broccoli and bell peppers. Season with a little salt and pepper and stir-fry over high heat for 5 minutes.
Add the onion and stir-fry together until the onion turns brown.
Transfer to a plate and top with a boiled egg to finish!