Oven-Roasted Brussels Sprouts Carrots and Broccoli Casserole
Oven-Roasted Brussels Sprouts, Carrots, and Broccoli Casserole are tossed together with chopped onions, extra virgin olive oil, and seasonings. Then they are oven-roasted for about 35 minutes until the vegetables are tender and softened. No creams. Just a simple vegetable casserole that is very light, easy to make, and big on flavor. Dairy-Free, Gluten-Free, and Paleo.
Recently, my daughter has been asking me to make her only paleo dishes. Really? Paleo? What’s that?
I only heardย about “theย Paleo diet”ย a while backย onย an episode of Doctor Oz. And, found out Paleo means eating the same way during cave times.ย Whaaaat??ย ย
It means you can onlyย eatย meats, fish, nuts,ย leafy greens, veggies, seasonal fruits,ย and seeds. That’s it.
That means, saying NO to pasta, bread, rice, all dairy products, and her favorite things like granola bars, potato chips, and chocolate.
I said, realistically, I don’t think that’s going to sit well with your father.
Then, she just looked at me withย thoseย bright blueย puppy-like eyes. OK, soย I told herย I would try a dish.

Oven-Roasted Brussels Sprouts Carrots and Broccoli Casserole
Surprisingly, because this isย a veryย simple vegetableย casserole, andย nothing fancy, itย turned out to beย fantastic!ย Not to mention,ย relatively easy because all the vegetables are roasted together.
NO cream or any cheese was added. The Italian bacon added, known as pancetta, slowly bakes into a crispy salty bacon, giving the veggies a ton of flavor.
If you don’t have any pancetta… don’t worry! You can substitute with prosciutto or any lean bacon; either one will add smoky flavors to the vegetables.
Since my daughter loved it, she now calls it her favorite “new” veggie dish.
We’d like to think this isย ourย versionย ofย a “Paleo casseroleย dish,” maybeย becauseย it’sย non-dairy and gluten-free.ย ย I’m not sure.ย Regardless,ย it’s big on flavor.
Whether this is really paleo or not, it doesn’t matter to me, as long as my daughter enjoys this, and knowing she’s eating her vegetables- makes me happy!
Enjoy!
Ingredients for Oven-Roastedย Brussels Sprouts, Carrots, and Broccoli Casserole:
-
1 basket Brussels sprouts- stems removed, sliced in halves
-
1 small head of broccoli- peeled skins, cut into chunks
-
2 yellow onions -chopped
-
6 carrots -peeled, chopped
-
1/8 tsp. cayenne pepper
-
1/4 tsp. sea salt
-
2 tsp. garlic powder
-
4 Tbsp. extra-virgin olive oil – divided
-
4 slices of pancetta- chopped
Directions To Make This Casserole:
1. Preheat oven to 375 degrees F (190C).
2. In a large baking or roasting pan. Drizzle one tablespoon of olive oil on the bottom of the pan.
3. As you chop each vegetable, scatter them in the prepared baking pan.
4. Drizzle on top with the remaining extra-virgin olive oil and scatter with the seasonings. Scatter pieces of pancetta over the top and place them into the preheated oven.

5. BAKE for 20 minutes.ย Remove from oven and turn veggies overย once.ย Return to oven and continue to bake for an additional 15 minutes.ย Taste andย adjust theย salt, if needed.ย Remove and serve.
Serves 6
You may enjoy these healthy casseroles as well:
- Healthy Italian Butternut Sweet Potato Casserole
- Baked Peas and Artichoke Hearts Casserole
- Roasted Sweet Potatoes Yellow Squash Brussels Sprouts Casserole

Oven-Roasted Brussels Sprouts, Carrots, and Broccoli Casserole
Yield:
4 to 6 servings
Prep Time:
10 minutes
Cook Time:
35 minutes
Total Time:
45 minutes
Oven-Roasted Brussels Sprouts, Carrots, and Broccoli Casserole are tossed together with chopped onions, extra virgin olive oil, and seasonings, then oven-roasted for about 35 minutes until the vegetables are tender and softened. A simple vegetable casserole that is very light, easy to make, and big on flavor.
Ingredients
- 1 basket Brussels sprouts- stems removed, sliced in halves
- 1 small head of broccoli- peeled skins, cut into chunks
- 2 yellow onions -chopped
- 6 carrots -peeled, chopped
- 1/8 tsp. cayenne pepper
- 1/4 tsp. sea salt
- 2 tsp. garlic powder
- 4 Tbsp. extra-virgin olive oil โ divided
- 4 slices of pancetta- chopped
Instructions
- Preheat oven to 375 degrees F (190C).
- In a large baking or roasting pan. Drizzle one tablespoon of olive oil on the bottom of the pan. As you chop each vegetable, scatter them in the prepared baking pan.
- Drizzle on top with the remaining extra-virgin olive oil and scatter with the seasonings. Scatter pieces of pancetta over the top and place them into the preheated oven.
- Bake for 20 minutes. Remove from oven and turn veggies over once. Return to oven and continue to bake for additional 15 minutes. Taste and adjust the salt, if needed. Remove and serve.
Thanks for Pinning!

Hello friends! Are you cooking with us? If you make this delicious oven-roasted veggies casserole, let us know and leave a comment below with a star rating! We’d love to hear from you!
Snap a photo and hashtag it on Instagram @2sistersrecipes and on Pinterest if you like. We’d love to see what you cook and share it with the world!
Thanks for stopping by! ๐
Happy and Healthy Cooking!
Anna and Liz
FREE EMAIL BONUS
Weeknight Dinners Made Easy
Tips & recipes for delicious meals . . . no matter your skill level!
FREE EMAIL BONUS
Weeknight Dinners Made Easy
Tips & recipes for delicious meals . . . no matter your skill level!
Paleo or not, I love these roasted veggies!
Thank you Betty!
This sounds wonderful, I'd put a fried egg on it and call it dinner!
Yum! that sounds amazing Sue – genius idea for a meatless dinner!
Roasted veggies are my favorite! A lovely combination with the prosciutto.
As a vegetarian, I couldn't eat paleo full time but it is fun to sneak in a dish here and there! Sounds like a great casserole!
Thanks Joanne!
I haven't jumped on the paleo bandwagon, as I would miss my grains. But your oven-roasted veggies, with or with pancetta, would make a satisfying meal in itself.
Hi Nancy! Thank you ! And we agree, the paleo is very difficult to stay on it- but eating paleo twice or three times might not be too bad.
Oh YUM! I would be so happy with a bowl full of these and nothing else!Mary
Me too Mary! Perfect for a light dinner ! Or meatless Mondays !! Have a great evening!
We oven roast vegetables several times a week but I never thought of this combination – which looks wonderful. We planted some brussels sprouts in our garden and can't wait to see what happens. Lovely recipe and good for your daughter to explore other ways of eating. We eat very few carbs anymore but when we do – we love to make it special. The colors are wonderful!
Hi Tricia your garden sounds wonderful! Thank you, I am sure you will love this dish as much as we do. Enjoy! Have a great day!
oh yes i love to try out your recipe, thanks for sharing.
Thank you! Enjoy!
Love it all! And so beautiful! I can only imagine how great this veggie casserole tasted. Lovely idea!!
Thanks Dan, you're a sweetie!