Grown-Up Green Bean Casserole

• 2 whole Leeks
• 1 whole White Onion
• 1 Tablespoon Olive Oil
• 1/2 cups Panko Bread Crumbs
• 1 Tablespoon Salt
• 5 cups Fresh Green Beans, Trimmed And Cut In Half
• 2 Tablespoons Butter
• 4 cups Crimini Mushrooms (baby Bella), Washed And Chopped
• 3 cloves Large Cloves Of Garlic, Chopped
• 1 cup Cup Of Chicken Broth
• 2 Tablespoons Flour
• 1 cup Cream

1. Preheat oven to 400F.
2. Cut the leeks (white and very light green portion only) into thin rings. Cut the onion into thin slices. Place both in a small bowl and toss with the olive oil to coat. Add to a baking sheet and add the Panko bread crumbs and salt, toss to combine.
3. Bake at 400F for about 30 minutes, tossing about every 8-10 minutes. Remove from the oven when a golden brown color is reached.
4. Place the green beans in a pot of rapidly boiling water. Boil for 5 minutes and immediately drain by pouring the beans into a colander, rinse with cold water for 2 minutes to stop the cooking.
5. In a sauce pan over medium heat, melt the butter. Add the mushrooms and cook for about 5 minutes, or until they turn a dark brown. Add the garlic and cook for about 30 seconds.
6. In a separate bowl, add the chicken broth and the flour, stir to combine. Pour into the sauce pan through a mesh strainer to remove any flour lumps. Stir and continue to heat until thickened, about 3-5 minutes. Remove from heat, add the cream and stir until combined. Return to heat and allow to cook until thickened, about 5 minutes. Remove from heat, add the green beans and 1/2 cup of the onion/leek mixture, stir. Pour into a 2 quart baking dish.
7. *Time management tip: If you want to make this the day before Thanksgiving, this is where you stop. Cover the baking dish and put it into the fridge. Put the remaining cooled onion/leek mixture in a separate container or Ziplock bag to prevent them from getting soggy from sitting on the top of the casserole all night.
8. When ready to bake: Top your casserole with the remaining onion mixture and place into your preheated 400 degree F oven. Immediately reduce heat to 375F and bake for 15 minutes or until warmed all the way though (note: if you are cooking this after removing from the fridge, as in the above tip, the cooking time will be longer, approximately 22 minutes).

leeks, white onion, olive oil, bread crumbs, salt, green beans, butter, crimini mushrooms, cloves of garlic, cup of chicken broth, flour, cream

Taken from tastykitchen.com/recipes/sidedishes/grown-up-green-bean-casserole/ (may not work)