One of those rebels, Mr Halfon, called on Mr Johnson to meet Manchester United striker Rashford, telling the BBC: "It may be that they don't agree with everything that Marcus Rashford is proposing, but it would give us a chance to come up with a long-term plan to combat child food hunger once and for all."
The Welsh government is to review how the ban on supermarkets selling non-essential items is working to make sure "common sense is applied", First Minister Mark Drakeford has said.
More than 34,000 people had signed a petition calling on politicians to reverse the ban on Saturday, which it described as "disproportionate and cruel".
As Wales entered a 17-day coronavirus "firebreak" lockdown, photos on social media showed products such as pillows and bedsheets under a plastic covering at a Tesco store.
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Products sealed off in Welsh shops
One social media user pointed out how baby clothes have been deemed to be non-essential in a Tesco supermarket in Cardiff, while vodka was still available on the shelves in the same store.
A photo from a Tesco store in Pengam Green showed products including cups and plates behind metal barriers too.
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Mr Drakeford said: "We'll be reviewing how the weekend has gone with the supermarkets and making sure that common sense is applied.
"Supermarkets can sell anything that can be sold in any other type of shop that isn't required to close. In the meantime, please only leave home if you need to."
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The leader of the opposition in the Welsh parliament, Paul Davies, branded the ban "madness".
The Conservative added that he has written to the presiding officer of the Senedd to call members back so they can debate the measures.
He said: "The Welsh Labour-led Government may not think these items are essential, but many will beg to differ."
But in an earlier post on its Twitter account, the Welsh government said the measures were "not for the sake of being difficult".
"Supermarkets can keep selling items you can find in other essential shops - such as stationery/greeting cards," it said.
Image:Stationery is also unavailable to shoppers at the Pengam Green store
"The purpose of selling essential items only during firebreak is to discourage spending more time than necessary in shops and to be fair to retailers who have to close."
It added that people in Wales must "do everything we can to minimise the time we spend outside our homes" to save lives and protect the health system.
Sainsbury's has emptied shelves and closed part of its store in Tenby that would usually be selling non-essential items.
A sign in the store reads: "Following latest government public health restrictions, we are unable to sell certain items, including plants & flowers, general merchandise, homeware or clothing."
Image:Products including cups and plates are seen behind a barrier at a Tesco in Pengam Green
Sky's correspondent Becky Johnson, says socks and tights have been cordoned off at a supermarket in Monmouth - but Halloween decorations, Christmas crackers and advent calendars can still be purchased.
One shopper told her that he thinks "the Welsh government has lost the plot".
Members of the public have expressed their disbelief at the government measures.
One man was filmed ripping plastic coverings off non-essential items in the supermarket.
Image:Home products are kept behind a plastic barrier at a Tesco in Cardiff
Gwilym Owen wrote on Facebook: "I had enough last night. I don't care about the backlash that I may get from this. Last night I heard supermarkets have put covers over 'non essential' things such as clothes. We're heading into winter now and who would have thought clothes for children weren't essential?
"I don't expect everyone to do what I've done here but I do expect everyone to know that denying the public clothing is nothing but immoral and inhuman. So no I'm not ashamed of what I've done."
A user with the Twitter name Milena ZP wrote: "Not impressed with not being able to purchase items.
"Not thinking of anybody least of all disabled people. Kettle breaks down like ours did in last lockdown at least we could buy one in the supermarket.
Image:Children's clothes are now behind a cordon at a Morrisons in Cardiff Bay
"Using a pan of hot water is not viable whilst waiting for delivery for a disabled person like myself. These items are essential and not just for making tea, it's for hot water bottles helping ease pain.
"So classing these items as non essential is wrong."
Twitter user Philippa Smallwood wrote: "It's absolutely ridiculous what is going on in Wales btw (by the way).
"Supermarkets having to tape off aisles as it is not essential items. Pretty sure that if you are isolated for 17 days and your kettle packs in, you should be able to buy a new one."
Fellow Twitter user Lucy Heath wrote: "Words fail me. How is a microwave not essential for someone if theirs breaks? Same with a kettle?
"Or a duvet/blanket with the weather getting colder? Yet again it's the people struggling financially that are the hit the hardest... definitely not "in this together" in Wales!"
It comes after Manchester United striker Rashford said he "couldn't be more proud to call myself British", as hundreds of cafes, restaurants and some local councils pledged to help feed children facing hardship during the October half term.
It comes after Manchester United striker Rashford said he "couldn't be more proud to call myself British", as hundreds of cafes, restaurants and some local councils pledged to help feed children facing hardship during the October half term.
Eighteen people have been arrested at a protest in central London over coronavirus lockdown restrictions.
Large crowds gathered outside Buckingham Palace, where police were stationed, before moving on to Trafalgar Square.
Some protesters carried placards calling for "freedom" and an end to the "tyranny" of Covid-19 restrictions.
The Metropolitan Police said the crowds had been dispersed but urged people to continue social distancing.
There was some disruption on Westminster Bridge as officers tried to break up demonstrators.
The force said three officers had suffered minor injuries.
Arrests were made for a variety of offences, including breaching coronavirus regulations, assaulting an emergency service worker and for violent disorder.
The capital was placed into tier two lockdown restrictions earlier this week.
Commander Ade Adelekan, of the Met, said he had become "increasingly concerned that those in the crowd were not maintaining social distancing or adhering to the terms of their own risk assessment".
He added: "Organisers did not take reasonable steps to keep protesters safe which then voided their risk assessment. At this point, officers then took action to disperse crowds in the interests of public safety.
"I am grateful that the vast majority of people listened to officers and quickly left the area. Frustratingly, a small minority became obstructive, deliberately ignoring officers' instructions and blocking Westminster Bridge.
"Although the majority of protests have concluded, our policing operation will continue into the night and I would urge Londoners to stick to the regulations, avoid gathering in large numbers and maintain social distancing."
The UK has reported another 174 coronavirus deaths and 23,012 more cases in the latest 24-hour period.
The amount of positive tests is higher than the 20,530 infections confirmed on Friday, government data showed.
The number of fatalities - within 28 days of a diagnosis - is fewer than yesterday's total of 224, while 44,745 people have died with the disease in total.
According to the government's coronavirus dashboard, 7,850 patients are currently being treated in hospital, with 743 in ventilator beds.
The number of tests carried out in the latest daily period was 340,132.
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In England, the Office for National Statistics (ONS) has estimated that 1 in 130 people had COVID-19 between 10 and 16 October, and around 433,300 people in the country were infected.
The previous week's estimate suggested 1 in 160 people had the virus.
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"The highest COVID-19 infection rates continue to be seen in the North West, Yorkshire and The Humber and the North East," the ONS said.
The biggest increase was identified in older teenagers and young adults.
The UK's coronavirus reproduction (R) number has fallen slightly to 1.2-1.4, according to the latest figures.
Last week's estimate from government scientific advisers SAGE was 1.3-1.5.
It tweeted: "The purpose of selling essential items only during firebreak is to discourage spending more time than necessary in shops and to be fair to retailers who have to close.
"This is not for the sake of being difficult - we need to do everything we can to minimise the time we spend outside our homes.
The UK has reported another 174 coronavirus deaths and 23,012 more cases in the latest 24-hour period.
The number of positive tests is higher than the 20,530 infections confirmed on Friday, government data showed.
The number of fatalities - within 28 days of a diagnosis - is fewer than yesterday's total of 224, while 44,745 people have died with the disease in total.
According to the government's coronavirus dashboard, 7,850 patients are currently being treated in hospital, with 743 in ventilator beds.
The number of tests carried out in the latest daily period was 340,132.
