open sandwich
US /ˈoʊ.pən ˈsæn.wɪdʒ/
UK /ˈoʊ.pən ˈsæn.wɪdʒ/

1.
sandwich aperto, tartina
a sandwich that has only one slice of bread, with the filling on top
:
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For lunch, she prepared a delicious open sandwich with smoked salmon and cream cheese.
Per pranzo, ha preparato un delizioso sandwich aperto con salmone affumicato e formaggio cremoso.
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In Denmark, open sandwiches, known as smørrebrød, are a popular dish.
In Danimarca, i sandwich aperti, conosciuti come smørrebrød, sono un piatto popolare.