This oven roasted Brussels sprouts and butternut squash recipe is a healthy and flavorful side dish, easy to make and ready in no time. A delicious vegetable recipe perfect to serve during the holiday season, like Thanksgiving, Christmas or New Year or as a winter side dish.

Oven roasted brussel sprouts and butternut squash on a plate with rosemary

Roasted butternut and Brussels sprouts

What is nicer than preparing vegetables in the right season. So many healthy vegetables make their entry during the fall and winter months. Both butternut squash and Brussels sprouts are great to serve as a side dish during these months. And what makes them even better is that their flavors pair really well together to make a delicious vegetarian side dish.

Unfortunately, many people dislike the taste of Brussel sprouts as they can have a very nasty and bitter taste. I never used to like them, until I discovered that depending on the way you cook them, they can taste really nice. Most people who make a Brussel sprouts recipe will just boil or steam them, but for me, this only serves to enhance the bitter taste.

Meanwhile, roasting them brings out a delicious slightly sweet aroma which is very palatable. Combining the Brussels sprouts with roasted butternut squash brings out this lovely roasted and sweet aroma. You’ll love it, you really will.

roasted butternut and brussels sprouts with rosemary and garlic on a plate

Which ingredients to use

  • Brussels sprouts: Use the freshest sprouts that look intense green and feel firm to the touch. Avoid using Brussels sprouts that feel old and soft as they will not taste nice. You can use frozen sprouts, but make sure they are properly thawed and removed of as much as their moisture if possible.
  • Butternut squash: Use a fresh looking butternut squash that still feels firm and heavy.
  • Garlic: Adding fresh garlic gives such a nice aroma. Finely slice the garlic and divide evenly over the dish. After roasting you can take out the garlic before serving as not everyone might like to eat it. Garlic powder is also an option.
  • Olive oil: Use a good quality extra virgin olive oil for optimal flavor. Or any other oil you love, like avocado, peanut, grapeseed or another type of oil.
  • Rosemary: Divide a few sprigs of fresh rosemary over the dish. It will give such a wonderful pungent and minty aroma.
  • Seasoning: Salt and freshly ground black pepper is a must to use in this dish. To give this vegetable dish more aroma consider using dried herbs like thyme, oregano, basil or marjoram.

How to make this recipe

Note: All the exact quantities of the ingredients can be found in the recipe card at the bottom of this post.

It doesn’t get much easier to make this oven roasted Brussel sprouts and butternut squash recipe. In fact, it’s very quick to make in just under 30 minutes. Only the cleaning and chopping of the vegetables take a bit of time. I also decided to make the beautiful flavors of the vegetables themselves the hero’s of the day by not adding too many additional herbs, spices and other ingredients.

Start by preheating the oven to 400°F (or 200°C), then rinse the Brussels sprouts with cold water and remove the yellow leaves. Trim the bottom end and cut in half. Peel the butternut squash and cut in bite-size chunks of about 1 inch or 2.5 cm. Make sure the butternut cubes are similar in size to the Brussel sprout halves to ensure the same roasting time and even cooking. Peel and finely slice the garlic cloves.

preparation roasted butternut brussels sprouts rosemary

Combine everything in a non-stick baking or oven tray. Add a little bit of extra virgin olive oil, salt and pepper to taste and toss to evenly coat everything. Place a few fresh rosemary sprigs on top of the dish and place in the oven.

Roast for 20 minutes and check with a fork if both the vegetables are tender. If not, leave to roast for another maximum 10 minutes. The exact cooking time will depend on your oven as well as the size of the vegetables. Serve immediately.

Recipe variations

As I already mentioned before, this recipe is simple with minimal extra ingredients which allows the lovely taste of the butternut and Brussels sprouts themselves to really shine. If you’d like to make it more exciting, here are some additional ingredients to add to this side dish recipe.

  • Bacon: Even though it is a side dish, a few bacon bits will lift up the dish and add an extra savory hint.
  • Cinnamon: Butternut and cinnamon is a great combination and is used a lot together. Cinnamon compliments the sweet taste of the roasted butternut and gives this dish some extra punch.
  • Maple syrup or honey: Another sweet flavor to elevate the taste and aroma of this recipe. Drizzle some maple sirup or honey over the vegetables during the last 10 minutes of the roasting time to avoid burning of the syrup while roasting.
  • Pecans: Sprinkle some chopped pecans over this dish before serving. This will provide a delicious nutty taste as well as some extra crunch. Consider roasting them in a dry pan to soften them ever so slightly.
  • Herbs: Experiment with various other fresh herbs instead of rosemary. Add some sprigs of fresh thyme instead of the sage leaves.
oven roasted brussels sprouts recipe with butternut squash and rosemary

Can you make this dish ahead of time?

It is best to serve immediately, however, this recipe can also perfectly be made in advance. After roasting, leave to cool and store in the fridge in an airtight container.

Re-heat in the oven by placing the ingredients on an oven tray and leaving them in there for 10-15 minutes on low heat until warm. Do not put the heat too high as they will start roasting and cooking again with the risk of being overcooked. You can also warm them in the microwave oven.

long shot of brussel sprouts and butternut on white table

Serving suggestions

Oven roasted butternut squash and Brussels sprouts is great to serve as a side dish with any roasted meats, like turkey, pork, chicken and glazed ham. It also goes really well with various hearty meat stews like this wild boar stew.

During the holidays, consider serving these vegetables in combination with some other side dishes like:

oven roasted brussels sprouts recipe with butternut squash and rosemary
Print Recipe Save Recipe
5 from 5 votes

Roasted Brussels Sprouts and butternut squash

This oven roasted Brussels sprouts and butternut squash recipe is a healthy and flavorful side dish, easy to make and ready in no time.
Prep Time10 minutes
Cook Time20 minutes
Total Time30 minutes
Course: Side Dish
Cuisine: Belgian
Servings: 4
Author: Sabine


  • 2 cups (or 300 grams) Brussels Sprouts halved
  • 2 cups (or 300 grams) Butternut squash peeled and cubed into 1 inch (or 2.5 cm) pieces
  • 2 tablespoons olive oil extra virgin
  • 2 cloves garlic sliced
  • 3 sprigs rosemary sprigs 2 inch / 5cm length
  • salt and pepper to taste


  • Preheat the oven to 400°F (or 200°C).
  • Trim the ends of the Brussels sprouts and cut in half. Peel the butternut squash and cut in bite size pieces (about 1 inch or 2.5 cm). Peel the garlic and cut in fine slices.
  • Place the Brussels sprouts, butternut cubes and garlic on an oven tray. Add the olive oil, salt and pepper (to taste) and toss all ingredients together until well coated. Place a few fresh rosemary sprigs evenly on top.
  • Place in the oven for 20 minutes until the vegetables are roasted and tender. Check with a fork. Leave 10 minutes longer if they need more roasting. Serve immediately


  • Make sure to cut the Brussels sprouts and butternut in to similar sized pieces to ensure even cooking.
Tried this recipe?Mention @thetastychilli or tag #thetastychilli!

Did you make this recipe? I’d love to hear how it turned out! Leave a comment with rating below and share a picture with the hashtag #thetastychilli and tag me on Instagram, Facebook or Twitter.

Inspired to prepare this recipe? Don’t forget to pin it to your Pinterest boards for later:

oven roasted butternut and brussels sprouts pin
roasted brussels sprouts and butternut squash pin
Share this recipe