Family Style

Family-style dining; via simplybridal.com

Family-style dining; via simplybridal.com

When food is served family style, platters of food are placed at each guest table. Wedding guests then help themselves and pass the food around to one another — similar to the meals your family has at home!

image via simplybridal.com

Merriam-Webster Online Dictionary
family style (adverb or adjective)
with the food placed on the table in serving dishes from which those eating may help themselves
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