Talk to Dietitian/Nutritionist on Daily Diet Plan For A Lower Middle Class Or Poor Person

Assalam u Alaikum.

kindly advise me the daily diet plan for a common person belonging to lower middle or poor class of that the person lives away from his home as laborer is forced to eat breakfast,lunch and dinner from extremely cheap hotels. What can be the most suitable food items that such a person can eat daily.I mean breakfast,lunch & dinner. When the daily diet plan for such a common poor person will be known,then obviously those living and cooking in their own houses and belonging to elite class will have no excuses left for not eating healthy diets.