I eat in the living room just because my kitchen is so small. It has a bar stool and a bit of worktop to eat at but thats about it. If I am eating and Ollie is out I just make something he can eat too and have my actual dinner later on so he doesnt feel left out and guilt trip me with the stareWe cannot eat anything around the birds.
Last year, with my first Jardine, Jack, he flew down and plonked his feet in a rather nice rice stir fry that my wife had made. I managed to lift him out before he ate any of it and it wasn't hot enough to injure him, thankfully. From that point onwards, the birds were locked in their cages at meal times!
We do like to eat in the living room. I know it's lazy, but the birds have their evening meal in their cages at their time, so we are all together. It is the quietest time of the day
I give them all chop and sprouted seed/legumes in the morning and then more chop later on. My parrotlets get pellet and tidymix too and Ollie eats some tidymix but he wasnt on pellets so ive ordered for him. They occasionally get porridge, scrambled eggs, brown rice etc with veggies mixed in. Ollie likes the occasional boiled egg yolk. Ive been making up some stuff for him during the day just to try figure out what he likes best. Apparently he used to eat meat and fish... Ive never given a parrot meat or fish before as it was my understanding that it wasnt a necessary part of their diet or natural for them to eat that. Not that he will find bowls of porridge or boiled eggs in the wildWe make a fresh fruit and veg chop in the morning. Half of it is served in the morning, along with dry mix (Tidymix for budgies, AS30 for the other two), pellet and water. In the evening, they get the rest of the fruit & veg, plus some finely chopped veg mixed with beans and pulses, brown rice, oat bran and rolled oats. The fine mix is the one that keeps them quite - they love it.
The bean and pulse mix is cooked/boiled in advance and frozen in small ziplock bags as portions. A quick zap in the microwave then the other ingredients can be mixed in. The ingredients are suitable for all of our birds.
He gets vitamin supplement and calcium because he had a deficiency in the past which led to a problem with his leg and was seen by a vet. He gets a piece of boiled egg but he tends to go for the yolk. He will eat scrambled egg too thoughSteamed white fish, chicken and boiled egg whites can be used for protein. Not sure about yolks. Not for our Eclectus as they are supposed to have a low fat diet. You can provide crushed up egg shells as they are a great source of calcium.
I am not sure how much if this is actually necessary and I don't know enough about a Grey's specific diet to say how beneficial they are, however, in moderation there are many things that will add interest to a diet and do little or no harm.
If an avian vet recommended supplements for protein, calcium, etc, I'd discuss with him/her the possibility of using natural sources rather than pills and potions.