The government to provide substantial free school meals.

The parcel each child will be provided with should be nutritious and healthy. All diets should be catered for (eg. Vegan, halal). At least 2000 calories per day per child.

Petitions need to call on the Government or Parliament to take a specific action. We're not sure exactly what you'd like the Government or Parliament to do.

The Government has already issued guidance on providing lunch parcels for pupils eligible for free school meals during the national lockdown, including that these should meet the school food standards and should cater for pupils who require special diets, for example allergies, vegetarians or religious diets. See:
https://www.gov.uk/government/publications/covid-19-free-school-meals-guidance/covid-19-free-school-meals-guidance-for-schools

You could start a new petition explaining clearly what you would like the Government or Parliament to do, if there are specific actions you would like the Government or House of Commons to take.