Reasonable nutrition refers to the complete variety, sufficient quantity and appropriate proportion of nutrients contained in the diet; Keep a balance with the needs of the body. Based on this, I designed a lunch for my mother: rice, fish, pork, vegetables and apples, in which rice mainly provides starch, fish and pork mainly provide protein and fat, and vegetables and apples mainly provide vitamins, which is more reasonable.

So the answer is: I designed a lunch for my mother: rice, fish, pork, vegetables and apples;