In a bowl, beat the cream cheese and sour cream until very smooth. Stir in the Greek yogurt and taco seasoning until everything is well combined.
Gently mix in the shredded cheddar cheese, sliced black olives, and green onions until evenly combined.
Evenly spread the mixture on each flour tortilla, leaving a small border along the edges. Roll each tortilla up tightly.
Cover the rolled tortillas with plastic wrap and refrigerate for a minimum of 1 hour. Once chilled, unwrap them and slice each roll into 1-inch thick pinwheels.