Asparagus Au Gratin

Fresh asparagus in cheesy sauce with a grain-free option? What's not to love?!?

This deliciously decadent Asparagus Au Gratin cooks the vegetable simply, then smothers it in cheesy goodness. It’s the most respectful way to treat a vegetable, as far as I’m concerned. Right up there with roasting. Roasting and cheese. I do that with all my favorite veggies.

gluten free Asparagus Au Gratin recipe

Asparagus is in season in the U.S. from January-June, with most of the crop being available from March-June out of California. We actually don’t grow much asparagus anymore – most of it is imported. So I try to make the most of asparagus season when I can get fresh stalks from farmers markets and grocery stores that buy from local growers. 

Unless you find a specialty grower or grow it yourself, you’re pretty much looking at green asparagus in the U.S. It also grows in purple and white varieties, and the flavor difference is substantial. White asparagus is really mild, purple asparagus is a little sweeter and the stalks are very hearty. For this Asparagus Au Gratin recipe, look for pencil thin, bright green stalks if you can find them. We’re looking to flash-cook them, hit them with some cheese, get it toasty, and eat it up.

You can make this recipe grain-free easily, by swapping the flour blend for cassava flour. You could also add a little spice with some chili powder in the sauce, or some color & flavor by tossing a thinly sliced red bell pepper in with the asparagus. I prefer to use my favorite bandage-wrapped cheddar from Fiscalini (it made Oprah’s favorites) and call it good. But you feel free to make it your own. 

Just make sure to tag me when you post a photo of your new-favorite-vegetable-recipe, would you? And now that you trust me, try my Crazy Delicious Kale and Brussels Sprouts Salad next. 


asparagus gratin gluten free recipe
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Asparagus au Gratin

This deliciously decadent Asparagus Au Gratin shows off the tasty vegetable with cheesy goodness.
Prep Time10 mins
Cook Time25 mins
Course: Side Dish
Cuisine: American
Keyword: asparagus, gluten-free side dish, side dish recipes
Servings: 6 servings
Calories: 163kcal
Author: K.C. Cornwell


  • 2 pounds thin asparagus
  • 2 1/2 cups gluten-free vegetable broth
  • salt and pepper
  • 2 tablespoons unsalted butter
  • 2 tablespoons gluten-free flour blend or cassava flour
  • ¾ cup Parmesan cheese grated and divided
  • ½ cup White Cheddar cheese shredded


  • Adjust oven rack to upper-middle position and heat broiler on High. Line broiler safe baking dish (7 x 11 pan is best) with paper towels or a lint free kitchen cloth. Slice the woody ends off the asparagus and discard them.
  • Bring broth to a boil in a large skillet over medium-high heat. Add asparagus stalks to skillet and cook, stirring occasionally, until nearly tender, 2-4 minutes. Transfer asparagus to paper/cloth-lined baking dish. Pour remaining broth into a heat-safe liquid measuring cup. If liquid does not read 1 1/4-cup mark, add water until it does.
  • Melt butter in now empty skillet over medium heat. Add flour blend and cook, stirring constantly until golden, about 1-3 minutes, depending on your blend. Whisk in reserved broth and bring to boil. Reduce heat to medium-low and simmer until thickened, 3-5 minutes. Off heat, whisk in ½ cup Parmesan and White Cheddar until smooth. Season with salt and pepper.
  • Cover and let stand for 5 minutes.
  • Remove paper towels from baking dish. Drizzle sauce over center of asparagus and top with remaining Parmesan. Broil until cheese is golden and asparagus is tender, 4-8 minutes. Serve.



Also delicious with sliced red peppers added in with asparagus.


Calories: 163kcal | Carbohydrates: 9g | Protein: 10g | Fat: 10g | Saturated Fat: 6g | Cholesterol: 28mg | Sodium: 654mg | Potassium: 326mg | Fiber: 3g | Sugar: 4g | Vitamin A: 1660IU | Vitamin C: 8mg | Calcium: 252mg | Iron: 3mg

Photos: Meg van der Kruik

Seriously. Who doesn’t want an extra helping of this?

grain free Asparagus Au Gratin

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