Seeing as he's going to get food for all of them he first sees to getting his hand on some kind of basket, to make it all easier to carry. But soon enough he gets back with an assortment of sandwiches and other interesting foods he's found being sold.
"There. Now we have something more filling than just sugar and flowerpetals."
It means to buy or get something :)
"There. Now we have something more filling than just sugar and flowerpetals."