We’ve made the classic Green Bean Casserole even better! Our cheesy version is absolute perfection. No canned soups, the cheese sauce is made from scratch but it couldn’t be easier. This is your new go-to recipe, guaranteed!
Scale
Ingredients
- 4 tablespoons butter
- 1 cup diced onion
- 1 tablespoon chopped garlic
- 4 tablespoons flour
- 1 1/2 cups chicken broth
- 3/4 cup heavy cream
- 1 cup shredded gruyere cheese, divided
- 1 cup shredded white cheddar cheese, divided
- 4 cans (14.5 oz. each) french green beans, rinsed and drained
- 2 cans (8 oz.) sliced mushrooms, rinsed and drained
- 1 teaspoon kosher salt
- Fresh ground black pepper to taste
- 2 cups crispy fried onions (store bought)
Instructions
- Preheat the oven to 400 degrees.
- Add the butter to a large skillet over medium heat. Once the butter is melted, add the onion and cook for 3 minutes to soften. Add the garlic to the pan and then cook a minute longer. Whisk in the flour until well blended and then cook for 1 minute.
- Pour in the chicken broth, while whisking until smooth. Bring to a simmer and cook for 2 minutes to thicken. Stir in the cream, bring to a simmer again for 2 minutes to thicken.
- Whisk 1/2 cup of gruyere and 1/2 cup of cheddar cheese into the sauce until smooth, then season with salt and pepper.
- Add the green beans and mushrooms to the sauce and stir to combine. Spray a 9″ x 13″ baking dish (2 quart capacity) with non-stick cooking spray and then pour in the green bean and mushroom filling. Top with the remaining 1/2 cup of gruyere and 1/2 cup of cheddar cheese.
- Bake for 20 minutes until the filling is bubbling and warmed through. Remove the casserole from the oven, top with the fried onions and then bake for another 5 minutes.
- Let the casserole rest for at least 5 minutes before serving to let the sauce thicken.
Recipe Notes
Store: Transfer any leftovers to an air tight container and refrigerate for up to 4 days.
Reheat: Reheat leftovers in the microwave or in a 350 degree oven until just warmed through.
- Category: Side Dish
- Method: Oven
- Cuisine: American
