National english meals

The Victorian Era
Food and cooking in Victorian England, just like in the Middle Ages and the Tudor periods, differed greatly depending on social class. The wealthy had access to fresher ingredients, like meats and cheeses, while lower-income groups were often limited to potatoes and vegetables, which often weren’t even fresh. People did the best they could with what they could get. Those that worked the land had the worst diet of all - scurvy was common in the lower classes.
The biggest shift in food culture during this period of time was the general rise in etiquette - both in general society and especially for eating. It was thought that an individual (specifically women) could rise in the social ranks on proper etiquette alone as it was so important. There were also new developments in cooking and tools used to cook food, which facilitated better sterilization of food that hadn’t been seen before this period.
The Victorian era brought about some strange food delicacies. Jellied Eel was served in markets in London and was very popular with working-class people as well as Sheep’s Trotters (sheep’s feet) which were and affordable meat for lower-income groups.
Kedgeree was also a new dish that first time incorporated flavours from India. It’s a curry dish with rice, smoked fish, milk, and spices like coriander and turmeric. It quickly became a popular English breakfast staple during the Victorian period.
Imperialism & Colonization
When European nations discovered the Americas, a vast array of new foods and spices were introduced to England, such as:

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  Coffee
  
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  Cocoa
  
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  Sugar
  
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  Turkeys
  
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  Oranges
  
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  Tea
  

All of these items quickly became highly valuable and expensive goods. The more powerful Britain became, the more they invested in the search for new land and the food it offered.
Discovery of new ingredients served as a way to make money through trade but also bringing larger variety to England’s own dishes. Having established British colonies all over the world meant that the English diet back home broadened widely. This new gateway allowed for a flood of foreign influence to take over England - a theme that continues to the present day.
For example, many Americans in the English diaspora will find that their diets were heavily influenced by English cuisine and culture. The holiday of Thanksgiving originated with the English tradition of Thanksgiving feasts. While the Turkey was a new world food, it quickly became adopted in England and is now served at Christmas time. Things like fish & chips, while not popular in America, are popular in Australia and New Zealand (where chippies have become common).