The antonyms for the phrase 'more chicken' can be 'less chicken' or 'not enough chicken'. 'Less chicken' means reducing the quantity of the meat, and 'not enough chicken' implies that there is an inadequate amount of chicken. Some other antonyms for 'more chicken' can be 'vegetarian food,' 'fish,' 'beef,' or 'pork' for those who prefer meat other than chicken. For individuals following a vegetarian lifestyle, 'meatless food,' 'vegan dishes,' or 'plant-based meals' would be suitable antonyms. However, it's important to remember that antonyms depend on context, preferences, and personal dietary requirements.