Zhōumò wǒ yòng kǎoxiāng zuò le yì pán qiāncéngmiàn.
At the weekend I made a tray of lasagna in the oven.
Tips
memory
千 'thousand' + 层 'layer' + 面 'noodles': the name pictures the stacked sheets of pasta. Other pasta names work the same way, such as 通心粉 'hollow noodles' for macaroni; the general word for pasta is 意大利面, or 意面 for short.