Place quinoa and 1 ½ cup broth into large sauce pan and bring to a boil over medium-high heat.
Once boiling, reduce heat to low, cover and let simmer for 15-20 minutes until all broth is absorbed.
While quinoa is cooking, bring a large pot of salted water to boil over high heat.
Add green beans and cook for about 3 minutes so they are crisp and not fully cooked. Drain in colander and set aside.
In a large skillet, add oil. onion and garlic and cook 3-4 minutes until softened.
Add mushrooms and cook another 3-4 minutes.
Add flour to mushroom mixture and mix well.
Add broth and milk and continue to stir to prevent lumps. Cook for 3-4 minutes.
Add cheese, quinoa and green beans and remove from heat.
Top with Parmesan cheese, fried onions and panko crumbs.
Place in a baking dish and cook for 30 minutes uncovered.
Notes
Place any leftovers in an airtight container and place in the refrigerator for up to 5 days.If reheating, place in baking dish and bake at 350 degrees for 15 minutes. Microwaving might make it mushy.