The 18-year-old was part of Lauren Smith's side back in March for qualifiers against Belgium, Austria and Ukraine, appearing in all three games, which were won resoundingly by the Young Lionesses.
Newell has now earned a spot for the main tournament in Poland, which is due to commence on Sunday 15 June, with England getting their adventure under way in a 16:00 BST kick-off on that day against the Netherlands.
Portugal and Spain complete Group B, who the young England side will face on 18 June and 21 June respectively.
Meanwhile, Group A contains Poland, Sweden, France and Italy.