Nighty Nightmare is the Season 1 episode from Garfield and Friends
Plot
After eating a pizza with every topping except anchovies which Garfield wants, Jon warns him that eating like that can give him a nightmare. Garfield laughs it off but consequently he has a nightmare, which involves him eating so much that he turns into a King Kong sized monster, though nothing will stop him from eating. He wakes up just as the aliens reveal their plot to eat him like a Thanksgiving turkey. Jon offers him a lasagna to apologize for trying to scare him like that, but Garfield promises to go on a strict diet of 20 lbs or 20 minutes, but he'll the lasagna later either way. First appearance of aliens. Title Reference: Nighty Night