Roasted Asparagus with Caramelized Onions and Pine Nuts

At long last, we have arrived. Can you feel it? Spring. Let there be pink tulips! Let there be lightweight jackets and white pants! And certainly let there be lots and lots of Roasted Asparagus with Caramelized Onions and Pine Nuts.

Roasted Asparagus with Carmelized Onions and Pinenuts

Though here in Wisconsin we are still waiting for the thermometer to consistently crack the big 6-0, yesterday morning I felt a sense of freshness and hope in the air I’d been missing before. Our grass is a little greener, our resident family of deer has returned to eating the bushes, and I can now exit the house without spending 10 extra minutes searching for my left glove.

In addition to the green of our grass (well, the brown/green/darker brown mix of our grass, but I’m feeling optimistic today), green is finally appearing at our local grocery stores. I’ve been on a bit of a vegetable high (yes, this happens, particularly when runny eggs are involved), and no veggie is throwing a bigger party in our refrigerator than asparagus.

Easy Roasted Asparagus

Roasted Asparagus with Caramelized Onions and Pine Nuts. An easy elegant spring side dish!

I’ve developed a mildly irrational fear that I am going to wake up and discover that my husband has transformed into a stalk of asparagus. Because they are easy, healthy and ridiculously tasty, I serve a big pan of roasted vegetables almost every night with dinner, and roasted asparagus has commandeered the menu. As I shared a few weeks ago when I posted this Cheesy Chicken Asparagus Casserole, asparagus season is tragically short, so every spring, I tend to go completely bonkers become highly enthusiastic and serve it multiple nights a week.

Perfect Roasted Asparagus

Although simply roasted asparagus is absolutely delicious on its own—few other dishes in life offer this much flavor with only five minutes of prep and four ingredients (asparagus, olive oil, salt, and pepper)—for the sake of variety and to discourage Ben from throwing my favorite baking sheet out the window, I’ve been testing easy ways to jazz up the same old pan of roasted vegetables. Today’s Roasted Asparagus with Caramelized Onions and Pine Nuts is our unanimous favorite so far.

To make this simple but stunning side, while the asparagus roasts, sauté sliced red onions on low heat with a bit of red wine vinegar. The resulting caramelized onions are an addictive mix of sweet and sour and blend beautifully with the savory roasted asparagus.

Roasted Asparagus topped with Caramelized Onions

A sprinkle of toasted pine nuts adds depth and crunch, and what was once a standard plate of roasted asparagus suddenly feels special and unique.

I’m sharing this recipe for Roasted Asparagus with Carmelized Onions and Pine Nuts as a part of one of my favorite monthly traditions: the #EatSeasonal blogger collaboration, organized by my inspiring friend Becky of The Vintage Mixer. Each month, our group shares a seasonal produce guide and recipes to help you shop for, cook, and enjoy ingredients that are at their peak of freshness and flavor.

April Seasonal Produce Guide

Since finding a human-sized asparagus stalk in my bed sounds terrifying, I’ll be expanding our menu to include more of these wonderful April fruits and vegetables, and I hope you do the same!

Easy Roasted Asparagus with Carmelized Onions and Pinenuts

Just as soon as I finish that extra pound of asparagus hanging out in our refrigerator, that is. Roasted Asparagus with Caramelized Onions and Pine Nuts one more time can’t be too risky, right?

Roasted Asparagus with Caramelized Onions and Pine Nuts

Yield: 4 servings
Prep Time:
5 mins
Cook Time:
20 mins
Total Time:
25 mins
Dress up roasted asparagus with caramelized onions and pine nuts. An easy but impressive recipe!


  • 1 1/2 pounds asparagus, — tough ends removed
  • Extra virgin olive oil
  • Kosher salt
  • Black pepper
  • 1 large red onion — thinly sliced
  • 2 teaspoons granulated sugar
  • 1 tablespoon red wine vinegar
  • 2 tablespoons pine nuts


  1. Place a rack in the upper third of your oven and preheat the oven to 400 degrees. Place asparagus on a rimmed baking sheet, drizzle with olive oil, then sprinkle generously with kosher salt and black pepper. Toss to evenly coat, then spread the asparagus in a single layer on the baking sheet. Roast until the asparagus is tender but still slightly crisp, 15 to 25 minutes depending upon the thickness of the asparagus.
  2. While the asparagus cooks, heat 2 teaspoons of olive oil over medium high. Once the oil is hot, add the onion, and sauté until beginning to soften, about 5 minutes. Reduce the heat to medium and add the sugar, vinegar, and 1/4 teaspoon kosher salt and a pinch of black pepper. Cook, stirring occasionally, until the onions are deeply colored and caramelized, about 20 minutes total. Add the pine nuts during the last 8 minutes of cooking to toast, being careful that they do not burn.
  3. Transfer the asparagus to a serving plate. Top with caramelized onions and pine nuts and serve.
Course: Side Dish
Cuisine: American
Keyword: Easy Side Dish, Roasted Asparagus with Caramelized Onions and Pine Nuts

Did you try this recipe? I want to see! Follow Well Plated on Instagram, snap a photo, and tag it #wellplated. I love to know what you are making!

More inspiring #EatSeasonal recipes for a fresh April:

This post contains some affiliate links, which means that I make a small commission off items you purchase at no additional cost to you.

About Erin Clarke

I’m fearlessly dedicated to making healthy food taste incredible. Wearer of plaid, travel enthusiast, and firmly convinced that sweets and veggies both deserve a place at the table. MORE ABOUT ERIN…


  1. Erin, I’m the same way about asparagus right now. I can’t get enough! I love this simple, yet elegant dish.  Carmelized onions make just about anything better! Love the crunch of the pine nuts too!

  2. So typically I like veggies, but they don’t get my heart racing. Not the case today! As soon as I spotted that pile of caramelized onions on the asparagus, I wanted it! At 6 AM. Nicely done!

  3. I can’t wait for asparagus season! Lovely pairing with the onions. 

  4. Oh I’m so happy asparagus season is here. One of my favorite veggies! Love the addition of caramelized onions here, which pretty much make everything better. Cheers, girlfriend! XO

  5. Hooray for spring produce! Also, are you pumped that Wisconsin is in the championship game? 

  6. I LOVE the photo of the asparagus in the glasses! What a cool shot! 

  7. Our friendly neighborhood deer have appeared too.  As much as I love watching them, I’m not as appreciative of them eating my crocuses!  This roasted asparagus looks like the perfect way to ring in the season.

  8. I adore roasted asparagus. And I am loving the idea of topping it with caramelized onions. Super stoked to try this!

  9. Wow, looks delicious! I love asparagus.I can almost smell the caramelized onions! 

  10. Yum! I had my first asparagus of the season at Easter dinner last night, and it was so good. My grandma topped it with finely shredded Parmesan and tons of black pepper. This looks so delicious, too!

  11. I’m with you.  I am so glad that we are starting to see sunshine, tulips pushing out from the ground, and rising temperatures (it was a rough winter here in Boston).  The asparagus look delicious. . .let’s hope the hubby doesn’t transform into an asparagus. :-)

  12. I can’t get enough asparagus this time of year. No joke, we’ve had it the last three nights in a row. My husband will be happy that I have a new way to prepare it. :) This looks amazing!! Love those caramelized onions!

  13. Those caramelized onions and pine nuts add SO much to the fresh asparagus! Such a smart flavor combo and lovely photos:)

  14. I need more caramelized onions in my life!!  And I totally agree ion capitalizing on asparagus season.  That is one veggie that is definitely no good when it’s out of season!!

  15. I love every single thing about this recipe, and I am head over heads for that pretty overhead picture of the asparagus – just as lovely as any flower arrangement.  Happy happy spring! :)

  16. haha I definitely feel like I’m going to turn into an asparagus! I’ve been buying it like mad lately! Love this – I mean, you just cannot go wrong with caramelized onions!

  17. All the yes. It’s nearly asparagus time down under. The asparagus council of Australia contacted me a few weeks ago asking if I would like a few kilos. Ahhhh…. HECK YEAH was my answer. 

  18. This asparagus takes the cake for being amazing. I love all of those caramelized onions. This would be a great side dish with some chicken :)

  19. Asparagus is trending. Asparagus’s every where. But that doesn’t make it any less delicious. Thank you for this recipe. I’m diversifying my asparagus cook book.

  20. We’re asparagus junkies! I love the addition of caramelized onions and pine nuts. This will most certainly be happening soon. Pinned.

  21. Erin, ok, first off, that family of deer. .  that totally would have freaked me out. .  just a little. .  I’ve never seen so many. .  altogether. .  they must love your house! :) I LOVE me some roasted asparagus. .  and the caramelized onions and pine nuts?! Yes!!! hooray for #eatseasonal! 

  22. I love roasted asparagus! And I LOVE the seasonings you used – looks tasty!! Pinned :)

  23. Those onions! SO gorgeous. What a beautiful recipe, Erin!

  24. Asparagus with caramelized onions, had never thought of it and sounds so brilliant! :)

  25. Wow, looks delicious! I love asparagus.I can almost smell the caramelized onions! 

  26. Gorgeous and delicious! Asparagus is one of my fav! Fantastic recipe.

  27. You are welcome. Please add me your future post

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