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Breakfasts in 1906 included oatmeal porridge, milk and treacle, and then a 'treat' or bread with dripping and a glass of milk.
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A few years after the Act was brought in, school dinners slowly became more interesting. Schoolchildren could even tuck into that British classic, Toad in the Hole.
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They feasted on spam, lumpy mash, potato pies and jam roly-polys at school.
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There was more variety in the 1960s and 1970s for British schoolchildren. They could choose from liver with mash, stew with mash, fish and chips, a cheese flan salad, and corned beef.
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Retro lunchboxes were popular in the 1980s.
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They would usually have a Dairylea Lunchable, a Frube, a Wagon Wheel or a Kellogg's Fruit Winder.
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School meals are healthier now than they've ever been, thanks to increasingly strict government guidelines.
Schools also have rules that ensure packed lunchboxes must be full of healthy items such as apples, grapes and a chicken salad sandwich.
Have a look at school lunches through the ages.