Back in the 1800s, one of the main evening meals was beef stew. Throughout the series, when the Ingalls sat down to eat, they were eating Dinty Moore Beef Stew, and on the nights they would have fried chicken for dinner, they were eating Kentucky Fried Chicken.
That's my girl.
Featured prominently in at least two episodes ("The Monster of Walnut Grove" and "The Music Box"), restless tree branches are seen and heard immediately outside the front upstairs window, next to the girls' bed. But at no point in the show did any such tree ever exist that close to the house.