Independent Senator Glenn Lazarus walked out of dinner with the Prime Minister Malcolm Turnbull – and with a near-empty stomach.

Mr Lazarus and fellow Senator Jacqui Lambie stunned their fellow diners when they walked out of dinner early thanks to an “obnoxious rant” from the Tasmanian.

Ms Lambie is unhappy no Tasmanians are in Cabinet – and that her state had not been confirmed to build a defence vehicle project.

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Mr Lazarus – a former rugby league star – Tweeted that he was less than satisfied with the meal offered by Mr Turnbull, who also hosted Senators Bob Day, David Leyonhjelm and Dio Wang.

The meal had been dubbed a “Last Supper”, given it was held ahead of proposed changes to Senate voting which would see minority representatives less likely to be elected. 

But the servings were so small that Mr Lazarus had to stop for fast food on the way home.

Dinner at the lodge didn’t go well. I had to go via Maccas on the way home. Serving sizes were for `stick insects’.

— Glenn Lazarus (@SenatorLazarus) February 25, 2016

Guests were served blue-eyed cod, which Mr Lazarus said was ‘gone in two mouthfuls’.

“The food was lovely, don’t get me wrong, but the portion size was a little on the small size so a diversion to McDonalds was needed,” he told the ABC.

He ordered a Big Mac, fries and a Diet Coke from McDonald’s, and also said the evening was too high-brow for him and Ms Lambie.

“It was a nice evening but it was pretty much a waste of time for people like myself and Jacqui,” he added.

“If we all had Cuban cigars, it would have been fitting because it was a very Liberal gathering.”

The Australian reported Mr Lazarus was “grumpy” during the dinner and when they left, Mr Turnbull remarked conversation would become more “pleasant”.

Others at the dinner included Attorney-General George Brandis, Communications Minister Mitch Fifield and Cabinet Secretary Arthur Sinodinos.