After rinsing quinoa, place into medium saucepan with chicken broth and bring to a boil. Carefully set broccoli on top, do not stir. Cover and reduce to a simmer for 10-15 minutes until broth is absorbed. Remove from heat (DON'T UNCOVER) and let sit for additional 5 minutes. Fluff quinoa and broccoli with fork.
Preheat oven to 375°
Melt 1 tablespoon of butter in large saucepan. Once melted, add minced garlic and cook for 30 seconds. Add flour and cook for additional minute. Slowly whisk in milk, and constantly whisk until mixture thickens, 2-3 minutes.
Whisk in 2% sharp cheddar and white cheddar until smooth. (Save a little of each to sprinkle on top). Season with salt and pepper.
Add remaining 2 tablespoons of MELTED butter and hot sauce. Remove from heat.
Stir quinoa/broccoli mixture and chicken until well combined.
Pour mixture into a greased 9x9 dish. Sprinkle with blue cheese and remaining cheddar cheeses.
Bake for 15 minutes until bubbly. Then turn broiler on and cook for an additional 5 minutes until cheese start to brown.
Garnish with chopped cilantro and green onion.
Serve with celery and carrots for the full buffalo experience