“grab a bite” = eat something quickly
“I didn’t have time for breakfast, so I grabbed a bite before school.”
“packed full of” = contains a lot of something
“My lunchbox is packed full of fruits and vegetables today.”
“something sweet” = a food that tastes sugary
“I like to have something sweet in my lunch, like grapes or a cookie.”
“share the wealth” = share something good with others
“Sophie likes to share the wealth by giving extra snacks to her brother.”