Asparagus casserole is an easy and super tasty dish!

It’s a savory blend of asparagus, creamy mushroom soup, and cheese, topped with crispy fried onions and baked until bubbly.

Simple, delicious, and perfect in every way!

a serving of Asparagus Casserole on a plate

Easy Asparagus Casserole Recipe

  • Asparagus casserole is a delicious side for Easter or Mother’s Day brunch but easy enough to make for everyday dinners!
  • Easy to assemble ahead and cook when ready or bake ahead and reheat when ready – the flavors will just get better!
  • This asparagus casserole recipe needs only 5 minutes of prep time and goes with any ham, turkey, chicken, or fish entrée!
Ingredients to make Asparagus Casserole labeled: frozen asparagus, cream of mushroom soup, shredded cheese, fried onions, milk, and soy sauce

Ingredients & Variations

Asparagus – Frozen asparagus is pre-cut to bite-sized pieces so prep is quick and easy! If using fresh asparagus, trim the woody stems from the bottoms and cut spears into 2”-3” inch pieces before using.

Sauce – A can of cream of mushroom soup makes this dish extra creamy and savory. Make a homemade mushroom sauce with basic ingredients, if you like.

Cheese – Cheddar and asparagus are a perfect pair! But you can try shredded Monterey Jack, Colby, or Swiss cheese in this recipe.

Crispy Fried Onions – Keep a can of crispy onions on hand to add crispy flavor to salads, soups, and burgers! Bacon bits are a great substitute if fried onions aren’t available.

Variations – Stretch the recipe by adding leftover cooked rice or meat like sausage or diced ham. A small bag of mixed veggies, water chestnuts, or sliced mushrooms will make a new dish every time!

How to Make an Asparagus Casserole

Simple, delicious, and perfect in every way!

  1. Cook asparagus in water until tender crisp.
  2. In a bowl, combine asparagus, soup, ½ of the cheese, milk, soy sauce, and 1 cup of crispy onions.
  3. Spread mixture in a casserole dish and bake (per recipe below).
  4. Top with remaining cheese and crispy fried onions and bake until golden.

Tips for a Creamy Casserole

Asparagus pieces can be simmered in vegetable or chicken broth in Step 2 for a richer flavor.

Milk can be switched out for any non-dairy product, with oat milk being the closest to getting a creamy consistency.

Once the casserole is baked, let it set for about 5 minutes before serving.

Asparagus Casserole with a servings scooped out


Keep leftover asparagus casserole covered in the refrigerator and reheat on the stovetop or in the microwave with a little milk stirred in to loosen the cheesy sauce. Enjoy leftover asparagus casserole as a hearty breakfast with a fried egg on top and some bacon crumbles!

More Vegetable Casseroles!

Did you enjoy this Asparagus Casserole recipe? Leave a comment and rating below!

a serving of Asparagus Casserole on a plate
5 from 1 vote↑ Click stars to rate now!
Or to leave a comment, click here!

Asparagus Casserole

Make the best holiday side dish and serve it anytime of the year with this asparagus casserole recipe!
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings 8 servings
Author Holly



  • 4 cups frozen cut asparagus 2 x 8 ounce packages
  • 10½ ounces condensed cream of mushroom soup
  • 1 cup shredded sharp cheddar cheese divided
  • ½ cup milk
  • 1 teaspoon soy sauce
  • cups crispy fried onions divided


  • Preheat the oven to 350°F.
  • In a skillet over medium high heat with ⅓ cup water, place the frozen asparagus. Cover and cook for 4 to 5 minutes or just until tender crisp. Drain well.
  • In a medium bowl, combine cooked asparagus, mushroom soup, ½ cup cheddar cheese, milk, soy sauce, and 1 cup crispy onions. Transfer to a 2 quart casserole dish.
  • Bake for 30 minutes uncovered, gently stir and top with the remaining crispy onions and cheese.
  • Bake for an additional 10 minutes or until golden.


  • Using fresh asparagus: Trim 1 pound fresh asparagus and cut into thirds. Simmer asparagus for about 5 to 7 minutes or until tender crisp. (Cooking time can vary based on thickness)
  • Do not over cook asparagus.
5 from 1 vote↑ Click stars to rate now!
Or to leave a comment, click here!

Nutrition Information

Calories: 169kcal | Carbohydrates: 10g | Protein: 7g | Fat: 11g | Saturated Fat: 6g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 2g | Cholesterol: 18mg | Sodium: 493mg | Potassium: 218mg | Fiber: 1g | Sugar: 2g | Vitamin A: 673IU | Vitamin C: 4mg | Calcium: 136mg | Iron: 2mg

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

Course Side Dish
Cuisine American

REPIN this Asparagus Casserole Recipe

Asparagus Casserole with a title
A serving of Asparagus Casserole with a title
Top image - a serving of Asparagus Casserole. Bottom image - Asparagus Casserole ingredients in a bowl with a title


, , ,

Recipes you'll love

About the author

See more posts by Holly

latest & greatest

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe Rating