In a 2 quart saucepan, melt butter over medium heat. Add flour and whisk until bubbly. Whisk in broth, stir until boiling. Remove from heat; mix in yogurt and chilies.
Cover the bottom of a 9×13 baking dish with 1/3 of the sauce.
Quickly dip tortillas in water. Drain briefly and cut into 1 inch strips.
Scatter 1/2 of the tortillas over sauce, then cover evenly with all the chicken and onion, 2/3 of the cheese and 1/3 of the sauce.
Top with remaining tortillas, sauce and cheese.
Cover dish and bake at 400 until hot in center, 30-35 min. Sprinkle with green onion
Thanks so much I’m new to this just trying to fine what works and I can do,looks delicious.
I hope you like it!