How to roast vegetables in the slow cooker:
Some things in life are too good to be true.
That daily email informing me I’ve won the $100 million Swiss lotto?
Too good to be true.

Annoying Infomercial Guy who excitedly informs you there’s a way to make money while you sleep? And if you call in the next ten minutes, he’ll reveal the secret for just $19.99?
Too good to be true.
And the idea that one can make flavorful roast vegetables without turning on the oven, heating up the entire house, and watching fastidiously to ensure the crock pot vegetables don’t burn?
Much too good to be true.
This one is true.
Say hello to roasted vegetables in the slow cooker!
“But wait! There’s more! Call right now and we’ll double your order!” ![]()
Below: the slow cooker vegetables and seasonings I used. Feel free to change it up.
Use more sweet potato, exchange carrots for the zucchini, cherry tomatoes for the garlic, add parsnips, add different herbs or spices to the crock pot vegetables…

How To Roast Vegetables In The Slow Cooker
Ingredients
- 2 bell peppers, cut in large slices (as shown in the photos)
- 1 large sweet potato, peeled and cut into cubes
- 3 small zucchini, cut in thick slices
- 1/2 cup peeled garlic cloves
- salt herbs of choice, and oil (I probably used about 1/2 tsp salt, 1 tsp Italian seasoning, and 2 tbsp olive oil. I guess you could use oil spray if you don’t mind the taste of roasted vegetables without oil. But I like the crock pot vegetables much better with the olive oil.)
Instructions
- How to cook crock pot vegetables in the slow cooker: Grease your crock pot, then add all the veggies. (I used a 4-quart slow cooker.) Season with the salt, herbs, and oil, then stir to evenly coat. Cook 3 hours on high (or longer on low), stirring just once every hour or so. At this point, you can open the lid and drain the liquid for another use. Don’t discard it; the liquid is seriously delicious! I just drank it like soup. The veggies will be a softer texture than oven-roasted veggies, but they are actually even more flavorful and sweet. Crockpots—thanks to their slow and steady heating—are known to heighten the flavor of whatever you’re cooking.View Crock Pot Vegetables Nutrition Facts
Do you ever fall for those tv infomercials?
Against my better judgment, I fall for them all the time! Then I have to remind myself, “It’s too good to be true. There must be a catch.” A cream that claims you can use it once and never shave again? Too good to be true. A CD that teaches you a new language in under 10 days? Too good to be true. A robotic vacuum cleaner you don’t need to push? Much, much too good to be true. A few years ago, one of my friends bought that vacuum… all it did was constantly crash into the wall!
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Ohhh, I absolutely love this idea! Trying it out tonight. Why have I never thought to roast my veggies in a slow cooker. I guess that makes things a lot easier when I’m gone the whole day.
Wonderful! I would have thought them to be too watery.
I don’t own a slow cooker because I never thought I’d have a use for it, but this method of roasting veggies is reason enough for me. This is such a great time and energy saver! Thanks for the great idea. Your pictures are beautiful, as well!
I see a slow cooker ratatouille in my future.
Great idea roasting the veggies in the crock pot! 😀 Haha, every time my husband and I see an infomercial on tv we always think of this Friends episode where Joey does an infomercial for this spout thing for milk cartons. We love to quote the line, “Now you can have milk everyday!”. Lol. It helps us to never take infomercials seriously. 😉
Lol I never knew it could be done I am excited to try it; I hope my veggies do not dry out..
Wow that is freaking awesome…may have to give it a go!
I’ve never thought about “roasting” veg in the slow cooker. What a great idea. I don’t use my slow cooker nearly as much as I should do.
This is absolutely fabulous! As long as the veggies don’t stick to the sides…
Genius! Roasted veggies are the most delicious way to prepare vegetables and I’m a pretty big fan of the slow cooker so I will be trying this out!
YES!!! I JUST bought a mini (2-cup capacity – so cute!) slow cooker so that I can “cook” while I’m working the night shift. What a brilliant idea! 😀
P.S. Katie, Katie, Katie, you take the peel off of your sweet potatoes?? That’s the best part! LOL Kidding. 😉 (No, seriously, I actually ask for my dad’s sweet potato peels because he won’t eat them. I know I’m weird…)
P.S. I just took a second look at your post (the first one was a semi-quick skim) and noticed the delicious whole cloves of garlic! If only I could roast JUST garlic and put JUST garlic over my rice or quinoa, or just on my plate. However, my family disowns me when I eat garlic…
The peels of a lot of fruits/vegetables have a large portion of the nutrition!!!
I absolutely love the idea of roasting my veggies in the slow cooker! Can’t wait to give it a try!
I just got a slow cooker for christmas! This will be the first thing I make! I wish you had a croc pot category of recipes.
You have no idea how excited I am about this!!! I love roasted veggies. But I don’t like heating up the house while I’m roasting them. This is perfect! I’ll be trying it this weekend. Thanks for sharing!
BUUUUUUTTTT you can’t put chocolate on these;)
Katie! I just fell in love with your site EVEN more! You have such amazingly creative, simply, delicious, nutritious and beautiful ideas and creations (can creations be creative? Yours are!!)! Thank you! I am certain your cookbook (first of many!!) is going to be an actual best seller!! You totally deserve it! Have a good night! Colleen 🙂