The prime minister says school dinners will get much healthier after lots of pressure from parents about junk food on the menu.
It's one of a list of things Tony Blair says the government must to to make children's lives better in the future.
The plans, called a manifesto, include extra cash to improve school kitchens, and more help for dinner ladies.
"It may take a little time to change children's tastes, but it will be worth the effort," Mr Blair said.
The manifesto document is a list of all the things the government says it hopes to achieve if it wins the next election.
Other plans include:
- A clampdown on the sale of cigarettes to under 16's
- Working towards ALL children getting a good education and proper healthcare
- Extra money to keep teenagers off the streets
- Improve parenting skills
- Teaching children how to stay safe online