Ingredients
Method
- Start by preheating your oven to 350 degrees.
- Wash and trim fresh green beans to your desired size. Aim for evenly sized pieces for consistent cooking time and doneness.
- Sauté green beans in butter and olive oil, seasoning with salt, pepper, and seasoned salt until they are tender but still have a little bite. Set aside.
- Melt butter in a pan over medium heat and add a bit of olive oil. Once heated, add the onions and cook until they start to sweat. Next, add the mushrooms and cook them until they are slightly browned. Then, add the minced garlic and continue to cook for another 2-3 minutes, stirring frequently, until the garlic begins to soften.
- Toss in the green beans and mix all together.
- Begin by making the roux (a thickening agent, equal parts butter and flour), mixing in the vegetables until everything is well combined and the roux is evenly dissolved into the butter and vegetables.
- Add the chicken broth and stir thoroughly until it resembles a creamy soup. Gently scrape the bottom and sides of the pan to incorporate the other flavors.
- Stir in the heavy cream and give a taste test. Add in whatever you feel is missing. I prefer to add the thyme in this step to ensure it doesn't overpower the flavor.
- Bring to a boil, then reduce heat to medium-low and cover with the lid slightly ajar for about 15 minutes.
- Transfer the mixture to a baking dish and sprinkle fried onions on top. Bake at 350 degrees for 15 to 20 minutes, or until the edges of the casserole begin to bubble and the onions are lightly browned.
Notes
Mona's tip: Cooking this in a Dutch oven is super easy since you only need one pan for everything! I love the way it looks when served straight from the Dutch oven—it feels so warm and homemade!
Mona's tip: You can adjust these measurements, especially the thyme, based on your preferences and taste. I don't like too much herby flavor, because I feel it can interfere with and overpower the taste.
Mona's tip: French's Crispy Fried Onions are my go-to for this casserole. The taste is perfect, and it is one less thing to cook for Thanksgiving.
Mona's tip: This will be amazing with my Thanksgiving salad.
