Cheesy Asparagus Casserole

Step 3: Make the Cheese Sauce

1. In a medium saucepan, melt 2 tablespoons of butter over medium heat.
2. Add the chopped onion and sauté until soft and translucent, about 3–4 minutes.
3. Stir in the minced garlic and cook for another 30 seconds, just until fragrant.
4. Sprinkle the flour over the onion and garlic mixture, stirring constantly for about 1 minute to form a roux.
5. Slowly whisk in the warm milk and cream, ensuring no lumps form.
6. Add Dijon mustard, salt, and black pepper. Continue to cook, stirring frequently, until the sauce thickens slightly (about 5 minutes).
7. Remove from heat and stir in 1 cup cheddar cheese and ½ cup Parmesan cheese until smooth and creamy.

Step 4: Combine and Assemble

1. Place the blanched asparagus in the prepared baking dish.
2. Pour the cheese sauce evenly over the asparagus, gently stirring to coat all pieces.
3. Optional: For a crunchy topping, mix ½ cup breadcrumbs with 2 tablespoons melted butter and sprinkle over the casserole.

Step 5: Bake the Casserole

Bake in the preheated oven for 20–25 minutes, until the casserole is bubbling and the top is golden brown. If you like an extra-crispy top, you can broil for an additional 2–3 minutes, keeping a close eye to prevent burning.

Step 6: Serve and Enjoy

Remove the casserole from the oven and let it sit for 5 minutes to set slightly. Serve as a side dish alongside roasted chicken, grilled fish, or a hearty main course. The creamy, cheesy asparagus will be the star of the meal.

Tips for Success

• Fresh asparagus matters: Choose firm, bright green stalks with tight tips for the best texture.
• Cheese variation: Try mixing cheddar with Gruyère or Fontina for a more complex flavor.
• Make ahead: Assemble the casserole up to a day in advance, cover, and refrigerate. Bake when ready to serve.
• Add crunch: For extra texture, sprinkle toasted almonds or panko on top instead of breadcrumbs.

Why You’ll Love This Casserole

Cheesy Asparagus Casserole is more than just a side dish—it’s a celebration of fresh vegetables in a creamy, savory sauce. The combination of tender asparagus and rich cheese sauce creates a comforting, indulgent flavor profile while still feeling light enough for spring and summer meals. It’s a versatile dish that pleases both vegetable lovers and cheese enthusiasts alike.

If you want, I can also create a shortcut version with a one-pan method that’s faster and perfect for busy weeknights, while keeping it creamy and cheesy.

Do you want me to do that?