gratin

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++grat·in /ˈɡrætæn $ ˈɡrɑːtn/ noun [countable, uncountable]  a dish containing vegetables or fish, covered in cheese or cheese sauce and cooked in an oven 〔表面为干酪或奶汁的〕脆皮烙菜，焗烤菜肴

Examples from the Corpus

gratin• In a gratin dish pour a little of your cream sauce.• The gratin dish should be quite full.

grat·in nounChineseSyllable  

covered cheese containing Corpus vegetables or in dish fish, a

gratin
grat‧in /ˈɡrætæn $ ˈɡrɑːtn/ noun [uncountable and countable]
a dish containing vegetables or fish, covered in cheese or cheese sauce and cooked in an oven

gra·tinBrE /ˈɡrætæn/ 🔊NAmE /ˈɡrætn/ 🔊 noun [uncountable] (from French) a cooked dish which is covered with a crisp layer of cheese or breadcrumbs (1) 脆皮烙菜（表面为干酪或面包屑）