Which fast food chain is known for its secret Animal Style burger and fries?

Joe is off today, but Mac from the fast food podcast "The Weekly Mac" is here to ask Fast Food related trivia questions.

Which fast food chain is known for its "golden arches" logo and famous Big Mac sandwich?
Question 2: What is the name of the fast food mascot - you know, the young girl with red braids who likes frosties?
Question 3: Which fast food chain introduced the famous slogan, "Have it your way," in the 1970s?
Question 4: What is the signature item at Taco Bell, a hard-shelled taco filled with ground beef, lettuce, cheese, and tomatoes?
Question 5: Which fast food chain is known for its "secret menu," which includes items like the "Animal Style" burger and fries?