No probs. If you didn't manage to find the veg list for slim and save this is it:
Asparagus, bamboo shoots (canned, drained), broccoli, cauliflower, celery, courgettes, cucumber, fennel, gherkins, green peppers, green chili peppers, leeks, lettuce, mushrooms (not fried), olives, rocket, shallots, spinach, spring onions, swede (flesh only), turnip (flesh only and must be boiled), watercress and white cabbage.
You can have 200g of any of those or a mixture of them each day and remain in ketosis. You will not kick yourself out of ketosis with chicken as it doesn't really have any. Careful of hidden carbs- gravy generally has flour in it.