Season 3: Episode 57: No Fat
When Marie and Frank get some test results back, they find out that they're not as healthy as they thought. So Marie throws out all the unhealthy food and makes Frank go on a diet with her. This doesn't sit well with him and the rest of the family when it comes to Thanksgiving dinner. Instead of the traditional turkey dinner she makes a tofu turkey. So Ray orders a traditional Thanksgiving dinner from a restaurant. Debra thinks that Ray might have hurt his mother's feelings, but it's quite the opposite when he catches Marie eating his Thanksgiving dinner in the middle of the night.