Hello Bonnie,
Thank you for reaching out. We appreciate you letting us know your inquiry if you can use this Samsung microwave for baking a casserole. We understand that this information may be essential for you to know, and we're here to help.
Yes, you can use this microwave for baking a casserole. Food suitable for microwave + Power Convection cooking is all kinds of meats and poultry, casseroles and gratin dishes, sponge cakes and light fruit cakes, pies and crumbles, roast vegetables, scones, and bread.
Attached is a link to the user manual, which you can check anytime for reference.
https://downloadcenter.samsung.com/content/UM/201904/20190417121315393/MC11K7035CG_AA_DE68-04387Q-02_EN-MES.pdf
For other concerns, do not hesitate to reach out via our Support Channels below:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.commuity.samsung.com/t5/Samsung-Community/ct-p/us
Thank you, and stay safe!
Your Reference Ticket Number: 1144404848
-Angelica