Green Bean Casserole with Caramelized Onions and Mushrooms

Homemade with fresh vibrant green beans, creamy sauce, crispy fried onions, tender mushrooms and savory caramelized onions...wow, this green bean casserole is coming in hot and bubbly to a Thanksgiving table near you!

Prep:
25
minutes
Cook:
65
minutes
TOtal:
90
minutes

Ingredients

  • 1 Lb green beans, cut in thirds
  • 1 8 Oz package baby bella mushrooms, sliced
  • 1 Onion, cut in half moons and caramelized
  • 1 TBSP minced garlic
  • 1 14.5 Oz can low sodium chicken broth
  • 1 and 1/2 Cup whole milk
  • 1/2 Cup half and half
  • 3/4 TSP salt
  • 1/4 TSP pepper
  • 6 TBSP unsalted butter (4 TBSP for the caramelized onions, 2 TBSP for the sauce and mushrooms)
  • 2 TBSP olive oil

Instructions

  1. Heat a pot of salted water over high heat. When boiling add your green beans and cook for 6-8 minutes until tender and no longer crunchy. Once done, remove from heat and strain. Set in a bowl and set aside.
  2. Cut your onion in half moons and separate the layers. When done, heat a pan over medium to low heat. Add 4 TBSP butter and melt. Once melted add onions and caramelized. NOTE: This is a slow and steady process. It will take about 45 minutes.
  3. While your onions are cooking. Make the green bean casserole sauce. Begin by heating another pot over medium heat. Add 2 TBSP butter and melt.
  4. Once butter has melted sift your 2 TBSP flour and whisk to mix. NOTE: if you do not have a sifter, no problem just make sure to whisk your flour good to break up and clumps. Once mixed add your mushrooms, 1 TBSP minced garlic and 2 TBSP olive oil and cook for 3-5 minutes.
  5. Slowly add your chicken broth and mix.
  6. Slowly whisk in your whole milk and then directly after slowly mix in your half and half. Bring to boil. Once boiling, lower heat and bring to a simmer for 15 minutes. Half way through sift in another 1 TBSP flour and whisk to thicken. Season with 3/4 TSP salt and 1/4 TSP pepper to taste.
  7. Add your cooked green beans and mix. Then, add your caramelized onions and mix well again. Remove from heat and set aside.
  8. Pre-heat oven to 400 and spray a baking dish with non-stick spray.
  9. Transfer your green bean casserole to your prepared baking dish and bake for 20 minutes. Then, add your crispy onions and bake another 3-5 minutes until golden brown. Garnish with parsley flakes.
  10. ENJOY!