How to Make It
Heat 1 tablespoon oil in a large skillet over medium-high. Add steak; cook 5 minutes or until browned. Add spinach, cream cheese, feta, and olives; cook 2 minutes. Remove steak mixture from pan.
Wipe pan clean with paper towels. Spoon about 1/3 cup steak mixture evenly over half of each tortilla. Fold tortillas in half over filling. Add 1 1/2 teaspoons oil to pan. Place 2 quesadillas in pan; cook 3 minutes on each side or until browned. Repeat procedure with remaining 1 1/2 teaspoons oil and remaining 2 quesadillas. Cut each quesadilla into 4 wedges. Serve with yogurt.