Hello and excellent question. I am going to attach a link about meals. As a part of cares act of 2022 the meals from restaurants were 100% deductible. This may change and revert back in 2022 to 50%. Please note the link related to meals accounts for prior to cares act. In addition, if the meal(s) qualify for Schedule E expense you will enter the full amount of cost/receipt. For example, if a joint meal at a restaurant is $50 then the $50 will be entered. I hope this answered your question and the below link adds the extra explanation you were looking for.
Travel Meals to Rental Property