The term 'Dairy Case Buy' refers to items that can be found in the dairy section of a grocery store. The crossword solutions for this term are Yogurt (6 letters), Oleo (4 letters), Eggs (4 letters), Edam (4 letters), and Oleos (5 letters). Yogurt is a fermented dairy product made from milk and cultures, while Oleo is another name for margarine, a butter substitute. Eggs are a common food item made from the reproductive cells of birds, and Edam is a type of cheese originating from the Netherlands. Oleos is a brand of margarine produced by Unilever.