Step 1

Preheat oven to 400 F.

Step 2

Trim the green beans and cut into 2-3 inch long pieces.

Step 3

Bring a pot of water to boil. Once it starts boiling, drop in the beans and cook for 3 minutes. If you like them softer, you can cook for an extra minute. Drain and set aside.

Step 4

Melt the butter and pan sear the onions until they are partially caramelized on high heat. Add in the garlic and sauté for another 30 second.

Step 5

Add in the mushrooms and sauté for 2-3 minutes. Add in the flour and mix well.

Step 6

Pour in the chicken broth, heavy cream, salt and pepper. Mix well to avoid any clumps.

Step 7

Lower the heat to medium and let the sauce simmer to thicken up. Do not boil. The sauce should just simmer.

Step 8

Once the sauce thickens up, add in the green beans. Mix together to coat well with the sauce and top with the crispy onions.

Step 9

Bake for 10-15 minutes until bubbly and then remove from the oven.

Step 10

Let it cool for a couple of minutes before serving.