The term 'substantial meal' has been in the news frequently due to the current COVID-19 restrictions enforced in various countries. However, if you're looking for alternatives to this phrase, some options include; filling fare, nourishing dish, substantial sustenance, hearty meal, generous feast, satisfying plate, and wholesome food. These are just a few of the synonyms for the term substantial meal that you can use. Depending on the context, you can opt for any of these synonyms to jazz up your communication and make it more exciting. Notably, the crucial thing is to present your message in a clear and concise manner ensuring that it is understood by your intended audience.