Simpson, 30, recently got engaged to Johnson and she revealed she will be spending the holidays in New York with the vegan option for dinner.
She said to US chat show host Jimmy Fallon: 'After getting out of the NFL, [Eric] went to this healer and is very healthy. For Thanksgiving we have to make a Tofurkey! It doesn't sound right! It's gonna be jiggly and weird.'
The singer admitted that 'when [Johnson] cooks vegan, it's good' but she'd rather the meaty option.
She said: 'I'm from Texas - I'd fry a steak. We all eat casseroles and giblets.'