The invention relates to a method for preparing and packaging a ready-made dish. According to the invention, the method comprises the following steps of: - placing (1012) a first food product (12) in a container (1)； - placing (1013) a second food product (13) in said container (1) such that the second food product (13) is situated above said first food product (12)； - placing (1011) a sauce or gravy (11) in said container (1) such that said sauce or gravy (11) is situated beneath said first food product (12) or mixed with said first food product (12), without being in contact with said second food product (13), before and during heating (23)； - hermetically vacuum sealing (102) said container (1)； - heating (103) the food content of said closed container (1), said container (1) remaining at rest during said heating step.
