Asparagus Casserole, made with fresh asparagus, is creamy and rich with a crunchy fried onion topping.
Perfect For Spring and Easter
A creamy and rich Asparagus Casserole with fresh asparagus and a crunchy fried onion topping is the perfect spring casserole and would be a great addition to your Easter menu.
Other Ingredients
In addition to fresh asparagus, this casserole has mushrooms, onion, sour cream, mayonnaise, and two kinds of cheese. How can it not be good?
No cream of anything soup is needed. Instead milk is added to a butter and flour roux.
The crunchy onion topping is my favorite. In addition to scattering them on top, I also like to crush some fried onions and mix them into the casserole. Not only do they provide flavor, but they act as a thickener as well.
Make Ahead
As a time saver, this casserole can be assembled a day in advance and baked just before serving.
It’s a rich and decadent spring casserole and there’s no better way to enjoy fresh asparagus.
More Asparagus Recipes
- Asparagus Leek Dip– Tastes like artichoke dip, only bolder!
- Chicken and Asparagus Casserole– a creamy egg noodle-based casserole that’s perfect for spring.
- Asparagus and Mascarpone Gratin– the most decadent, divine, delicious asparagus dish I’ve ever tasted!
- Asparagus Mornay– covered in a cheesy sauce and cracker crumbs and broiled until warm and golden.
- Fried Asparagus– a super crunchy coating covering crisp tender fresh asparagus stalks.
Asparagus Casserole
Ingredients
- 4 tablespoons (1/2 stick) butter
- 2 1/2 pounds asparagus,, trimmed and cut into 1-inch pieces
- 1 (8-ounce) package white mushrooms,, sliced
- 1/2 medium sweet onion,, chopped
- 1/4 cup all-purpose flour
- 1 1/4 cup milk
- 1/2 cup mayonnaise
- 1/2 cup sour cream
- 1/2 cup shredded cheddar cheese
- 1/2 cup shredded swiss cheese
- 1/2 teaspoon salt
- 1/2 teaspoon lemon pepper
- 1/4 teaspoon paprika
- 1 (6-ounce) can french-fried onions.
Instructions
- Grease a casserole dish and preheat oven to 350 degrees.
- Melt butter in a large pan over medium heat. Add asparagus, mushrooms, and onions and cook, stirring occasionally, for about 6 minutes.
- Sprinkle flour over vegetables and cook, stirring continuously, for 1 to 2 minutes.
- Gradually stir in milk. Cook until thickened.
- Reduce heat to low and mix in mayonnaise, sour cream, both cheeses, salt, lemon pepper, and paprika. Remove from heat.
- Crush about 1/3 of the can of french-fried onions and mix them into the asparagus mixture.
- Transfer mixture to prepared casserole dish.
- Sprinkle remaining french-fried onions on top.
- Place in oven and bake for 30 minutes.
Video
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Originally posted March 8, 2016.
Disclosure: This post contains affiliate links.
Delicious….I used a bit of blue cheese instead of swiss (didn’t have it). Also added a bit of pastrami I had in fridge for a little more protein…..Wonderful!!
I love asparagus but my family, not so much! This along with all of your other recipes have my mouth watering. Thanks so much for linking up to Weekend Potluck. We hope you continue to drop off your amazing dishes with us each week.
I can’t get enough of asparagus lately and I love the sound of it in this casserole! It looks fantastic with the crunch topping!
We have eaten asparagus in like every form and fashion recently, except this one! I think I know what I will be ding next!! 🙂
Oh I love the sound an an asparagus casserole! My husband and I eat asparagus all the time, so this would be perfect. Sounds delicious!
my rule is if i eat an 8 oz. steak i have to eat a green vegetable like steamed asparagus with mayonaise, no potato or bread–no carb. i’m trying high fat low carbs like uncured bacon and eggs every day but i don’t seem to be losing my belly fat from sweets like pastries which i’ve decreased 75% or so.
fruit is like medicine and vegetables are like torture.
Oh.Em.Gee. That sounds unbelievable, Christin. I’m sharing this! Thanks for the recipe!!
This casserole looks amazing- I was just cooking with asparagus earlier today, it’s so delicious!
This looks absolutely delicious! Love that it’s made totally from scratch!
Asparagus is looking so good right now and I’ve been loading up ! This casserole looks awesome. Love a bit of crunch from the asparagus and onion topping against the creaminess. Yum!