There is simply no reason to use an AI language model to generate recipes like this. It's easy enough to get a bunch of recipes in a machine-readable format and then just match the ones that share ingredients with the ones customers select. This is, I am sure, the approach taken by existing recipe sites that offer this feature.
This is just a clear example of someone using AI in an application which did not need it. AI is the new blockchain.
Pak ‘n’ Save’s Savey Meal-bot cheerfully created unappealing recipes when customers experimented with non-grocery household items