Asparagus and Mushroom Au Gratin – so easy and tastes great! Asparagus and mushrooms topped with an easy cheese sauce made with butter, flour, milk, sherry and mozzarella cheese. Ready to eat in 30 minutes! Great for a quick weeknight side dish and fancy enough for a dinner party! Everyone LOVES this recipe!
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This Asparagus Au Gratin is a new favorite in our house. We love asparagus, so I am always looking for new ways to prepare it. I found this recipe in an old cookbook and thought it sounded good -asparagus and mushrooms topped with a mozzarella cheese sauce. I mean, how can it be bad?!?!?! It only takes a few minutes to make and tastes great. We ate this for lunch and leftover for dinner. It was delicious both times!
How to Make Asparagus Au Gratin
As I said, this Asparagus Au Gratin is super easy to make. Start with trimming any tough ends off the fresh asparagus. Chop the asparagus spears into one-inch pieces and place in a 9×13-inch baking dish. Next, you can start sautéing the mushrooms and making the quick cheese sauce. To make the cheese sauce, melt some butter and whisk in some flour. Let that cook for a minute and then slowly whisk in milk, sherry, and mozzarella cheese
To assemble the casserole, top the asparagus pieces with the cooked mushrooms and pour the cheese sauce on top. Pop it in the oven and you are done.
One note about this recipe, you MUST sauté the mushrooms before adding them to the baking dish. If you don’t this will be super watery.
Feel free to change the cheese in the sauce. I think gouda, swiss, or gruyere would be lovely.
Can I Make Asparagus Au Gratin in Advance?
Sure! You can definitely make this early in the day or one day in advance and refrigerate until ready to bake. I haven’t frozen this casserole, but I think it would be fine to freeze it after baking.
What to Serve with Cheesy Baked Asparagus & Mushrooms
We really loved this Asparagus and Mushroom Au Gratin casserole. We actually ate it twice in one week. It is great for a quick weeknight side dish or even a dinner party. It goes great with just about anything – Italian dishes, steaks, chicken, pork. Here are a few of our favorite recipes from the blog that go great with this yummy Cheesy Baked Asparagus and Mushrooms:
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Asparagus and Mushroom Au Gratin
Equipment:
Ingredients:
- 2 lb fresh asparagus spears
- 8- oz fresh sliced mushrooms
- 1 Tbsp butter or oil
- ¼ cup butter
- ¼ cup all-purpose flour
- 2 cups milk
- 2 Tbsp sherry
- 1 cup shredded mozzarella cheese
- salt and pepper, to taste
Instructions:
- Preheat oven to 350ºF. Spray a 9x13x2-inch baking dish with cooking spray.
- Trim any tough ends from asparagus and cut spears into 1-inch pieces. Place in prepared baking dish.
- In a skillet over medium heat, melt 1 Tbsp butter. Add mushrooms and saute for about 5 minutes. Spread over asparagus in baking dish.
- In a medium saucepan, melt ¼ cup of butter. Stir in flour until smooth. Gradually whisk in milk and sherry. Cook over medium heat just until the sauce thickens, about 3 minutes. Remove from heat and stir in mozzarella cheese, salt and pepper. Pour sauce evenly over asparagus and mushrooms.
- Bake uncovered for 30 minutes.
Notes:
Steph
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I add shredded chicken thighs and pasta to this and double the sauce(no sherry). Omg one pot meal was so good! Thank you so much..
Correction I 1/2 the recipe all but sauce and added chicken and pasta.
This was amazing. I decided to add some chicken. All I had was 6 very small chicken thighs, I deboned them and took the skin off. I cut them up in small pieces, then put them in a tiny bit go cornstarch w/ salt and pepper, and cooked them in about a tablespoon of oil till they cooked through. Then I mixed everything together, topped it with the sauce and cheese. Just another twist for those who need a little bit of meat and veggies. Even with just the veggies it’s awesome!!
i may try making a keto version…i wonder if i could use xanthum gum as a thickening agent in lieu of the flour…i’ll let you know!
Can you substitute chicken broth for the sherry?
you can try it
I LOVE asparagus, but I do not like mushrooms. Any thoughts on what I could substitute for the mushrooms? ????
You can leave them out if you don't like them – no problem
Can I substitute the sherry for something else. Not a fan of cooking with alcohol.
Love this – my two favorite veggies together!!! with cheese!!!!
YASSS!
I would really like to try this recipe. I don’t have any sherry at this time. What else can I use in place of it. Thank you.