Herb Roasted Vegetable Medley For Thanksgiving

If you ask me, roasted vegetables are the unsung hero of Thanksgiving dinner.

This colorful side dish brings together seasonal favorites like Brussels sprouts, carrots, and sweet potatoes in one simple pan. Everything gets tossed with olive oil and herbs, then roasted until tender and slightly caramelized.

The best part? You can prep it ahead of time and pop it in the oven while your turkey rests. No last-minute chopping or stirring required.

It’s a foolproof dish that frees up stovetop space and gives you one less thing to worry about on turkey day.

What Kind of Vegetables Should I Use?

This medley is pretty forgiving when it comes to vegetable choices, so feel free to swap things around based on what you have on hand. For the broccoli, fresh florets work best, but frozen will do in a pinch – just make sure to thaw and pat them dry first. When it comes to carrots, baby carrots or regular carrots both work great, just keep those slices thin so they cook evenly with everything else. For the mushrooms, button or cremini mushrooms are perfect, but you could also try shiitake or even portobello if that’s what you’ve got. The key is keeping all your vegetables roughly the same size so they roast at the same rate and you don’t end up with some pieces burnt while others are still raw.

Options for Substitutions

This colorful veggie medley is super forgiving and works great with whatever you have on hand:

• Broccoli florets: Cauliflower, Brussels sprouts (halved), or green beans all roast beautifully and give you that same hearty texture. Just keep the cooking time about the same.
• Button mushrooms: Any mushroom variety works here – cremini, shiitake, or portobello (chopped up) will add great flavor. You can even skip them entirely if mushrooms aren’t your thing.
• Grapeseed oil: Olive oil, avocado oil, or vegetable oil all work perfectly fine for roasting. Use the same amount as called for.
• Vegan butter: Regular butter works if you’re not keeping it vegan, or you can substitute with an extra tablespoon of oil for a dairy-free option.
• Canned corn: Fresh corn kernels (about 1 cup) or frozen corn both work great. If using frozen, no need to thaw first – just toss it right in.
• Fresh dill: Rosemary, thyme, or even Italian seasoning make tasty swaps. Start with about half the amount if using dried herbs instead of fresh.
• Maple syrup: Honey (if not keeping it vegan) or brown sugar dissolved in a little water gives you that same sweet balance.

Watch Out for These Mistakes While Roasting

The biggest mistake when roasting vegetables is overcrowding your pan, which causes them to steam instead of getting those nice caramelized edges – use a large sheet pan or two smaller ones to give everything room to breathe.

Another common error is cutting your vegetables different sizes, especially those carrots which need to be sliced thin so they cook at the same rate as the broccoli and mushrooms.

Don’t add the corn until the last 10-15 minutes of roasting since canned corn is already cooked and will turn mushy if left in too long, and save that fresh lemon juice and maple syrup for after roasting to prevent burning.

Finally, resist the urge to stir too often – let the vegetables sit undisturbed for at least 15-20 minutes to develop proper browning before giving them a gentle toss.

What to Serve With Roasted Vegetable Medley?

This colorful veggie medley is perfect alongside your Thanksgiving turkey or ham as a lighter side that balances out all the rich, heavy dishes on the table. The mix of roasted broccoli, carrots, and mushrooms pairs beautifully with creamy mashed potatoes and stuffing, giving everyone a fresh, healthy option to fill their plates. I love serving this with some warm dinner rolls for soaking up any leftover maple and lemon juices from the pan. You can also toss any leftovers over quinoa or rice the next day for an easy post-holiday meal that feels way more exciting than plain turkey sandwiches.

Storage Instructions

Keep Fresh: This roasted veggie medley keeps really well in the fridge for up to 4 days in an airtight container. I actually think it tastes even better the next day after all those flavors have had time to meld together! It’s perfect for meal prep or making ahead for your Thanksgiving feast.

Freeze: You can freeze this medley for up to 3 months, though the texture of the vegetables will be a bit softer once thawed. I like to freeze it in portion-sized containers so I can grab just what I need for a quick side dish during busy weeknights.

Warm Up: To bring back that fresh-roasted taste, pop it in a 350°F oven for about 10-15 minutes until heated through. You can also warm it up in a skillet over medium heat with a little extra oil. Give it a fresh squeeze of lemon and maybe a pinch more dill to brighten it up again.

Preparation Time	15-20 minutes
Cooking Time	35-45 minutes
Total Time	50-65 minutes
Level of Difficulty	Easy

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 300-400
• Protein: 9-13 g
• Fat: 15-22 g
• Carbohydrates: 38-52 g

Ingredients

For the roasted vegetables:

• 2 tbsp grapeseed oil (or any neutral oil like avocado oil)
• 3 small carrots (cut into thin rounds)
• 1/2 lb mushrooms (halved if large)
• 4-5 cups broccoli florets (cut into bite-sized pieces)
• Salt and black pepper

For the corn-dill topping:

• 1 small can sweet corn kernels (Libby’s Peaches & Cream preferred)
• 1 tbsp dried dill
• 1 tbsp plant-based butter (I like Miyoko’s Kitchen Cultured Vegan Butter)
• 2 tbsp minced garlic (about 3-5 cloves)

For finishing:

• 1-2 tbsp lemon juice (freshly squeezed for best flavor)
• 1-2 tbsp pure maple syrup

Step 1: Prep the Vegetables and Start Roasting

• 4 to 5 cups broccoli florets, with some stems
• 3 small carrots, cut into thin rounds
• 1/2 lb small cremini or white mushrooms, halved if large
• 2 tbsp grapeseed oil
• salt and black pepper

Preheat your oven to 375°F.

Prepare all the vegetables by cutting the broccoli into florets (with some stems), slicing the carrots into thin rounds, and halving the cremini or white mushrooms if they’re large.

Add the mushrooms, broccoli, and carrots to a 9×13-inch casserole or lasagna pan.

Drizzle the grapeseed oil evenly over the vegetables, season with a pinch of salt and black pepper, and toss everything together to combine.

Step 2: Roast the Vegetables

Cover the casserole dish with tin foil and place it in the preheated oven.

Roast the vegetables for 35 to 45 minutes, or until they are cooked to your preferred level of tenderness.

You can test doneness by piercing the carrots and broccoli stems with a fork.

Step 3: Make the Garlic Corn Dill Mixture

• 2 tbsp finely minced garlic (about 3 to 5 cloves)
• 1 tbsp plant-based butter (such as Earth Balance)
• 1 small can sweet corn kernels (Peaches and Cream preferred)
• 1 tbsp dried dill or 2 tbsp minced fresh dill

While the vegetables are roasting, add the finely minced garlic and plant-based butter to a microwave-safe bowl.

Microwave for 1 minute, until the butter is melted and the garlic becomes fragrant.

Stir in the sweet corn kernels and dill, then microwave for an additional minute to heat through.

I find that using fresh dill adds a lovely brightness, but dried works well too.

Step 4: Combine and Finish the Dish

• roasted vegetables from Step 2
• garlic corn dill mixture from Step 3
• salt and black pepper
• 1 to 2 tbsp fresh lemon juice or balsamic vinegar
• 1 to 2 tbsp pure maple syrup

Once the roasted vegetables are done, remove the foil and pour over the warm garlic corn dill mixture.

Season the entire dish with additional salt and black pepper as needed.

Drizzle with fresh lemon juice or balsamic vinegar, and a bit of pure maple syrup to taste.

Toss everything gently to combine before serving.

Personally, I like to add a splash of lemon juice and just a touch of maple syrup for extra zing and balance.