Six nutrients needed by human body: protein, sugar, oil, vitamins, inorganic salts and water; Combining the meaning of the question, Naan is a kind of cake with flour as the main raw material, which is rich in sugar; Rice is rich in starch and belongs to sugar; Mutton stew, fried eggs and bean curd soup contain oil, protein and inorganic salts; As we all know, there are few vitamins in food, so in order to make the nutritional collocation more reasonable, it is necessary to supplement foods rich in vitamins, such as vegetables and fruits.

So the answer is: sugar; Protein; Tomatoes and other vegetables.