Thor's eyes are a lot bigger than his stomach. Being on vacation doesn't change this.
"You know, I did say that even the Mighty Thor could not eat that entire basket of fried nonsense at once, but did you listen to me?"
“*pathetic groaning*”
”I would say ‘I told you so,’ but I think that would be a bit superfluous at this point.”
”You can say ‘I told you so’ as many times as you want if you only use your sorcery to make me feel better.”
”My dear brother, there is no magic to cure the effects of gluttony. Also, there is absolutely nothing you can do at the moment to prevent me from being exactly as smug as I please.”
Thor appears to be suffering from "going to food Valhalla" That is the condition of eating so much good food that you think you've died and gone to Valhalla for your courageous exploits against the buffet.