While planning my menu for week 3 of my Vegetarian Challenge, I took inventory of my pantry and noted that I still had about two pounds of potatoes left over from week one that needed to be used ASAP. I decided to make a version of my Fluffy Garlic Herb Mashed Potatoes, but modified to use up some of my leftover sour cream. I stirred in some sautéed kale to make the potatoes colcannon-esque, and topped them with some balsamic roasted mushrooms for a “meaty” element to the dish. The results were amazing and this might be my favorite recipe from the challenge thus far!!
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Shout out to Aldi for having amazing prices on mushrooms. I was able to get one pound of mushrooms for less than 1/2 pound would cost at other stores, making this recipe ULTRA affordable.
Make it Vegan
To make this meal vegan, simply replace the mashed potato recipe below with my Olive Oil Mashed Potatoes. You can stir kale or spinach into the olive oil mashed potatoes, just like they’re added to the sour cream mashed potatoes below.
Meal Prep It!
This dish holds up super good in the refrigerator, so it’s perfect for meal prep! I probably won’t have a chance to test it in the freezer though, because I’m eating through it so fast.
Balsamic Roasted Mushrooms with Herby Kale Mashed Potatoes
Servings 4Ingredients
Balsamic Roasted Mushrooms
- 1 lb. mushrooms ($2.58)
- 1 Tbsp olive oil ($0.16)
- 3 Tbsp balsamic vinegar ($0.33)
- 1/2 Tbsp brown sugar ($0.02)
- 1 Tbsp soy sauce ($0.06)
- 2 cloves garlic, minced ($0.16)
- 1/4 tsp dried thyme ($0.02)
Herby Kale Mashed Potatoes
- 2 lbs. russet potatoes ($1.08)
- 6 oz. kale, chopped ($1.68)
- 1 Tbsp olive oil ($0.16)
- 3/4 tsp salt, divided ($0.04)
- 1/2 cup sour cream ($0.45)
- 1/2 cup milk ($0.17)
- 1 tsp dried parsley ($0.10)
- 1/2 tsp dried oregano ($0.05)
- 1/2 tsp dried basil ($0.05)
- 1/4 tsp garlic powder ($0.02)
- 1/4 tsp onion powder ($0.02)
- freshly cracked pepper ($0.02)
Instructions
- Preheat the oven to 400ºF. Wash the mushrooms and cut them in half if they are large.
- In a small dish, stir together the olive oil, balsamic vinegar, brown sugar, soy sauce, minced garlic, and thyme. Place the mushrooms in a casserole dish big enough to allow them to be in a single layer. Pour the balsamic marinade over top and stir until the mushrooms are coated.
- Transfer the mushrooms to the preheated oven and roast for 45 minutes, giving them a stir every 15 minutes. After 45 minutes the mushrooms should be tender and there should be a nice sauce in the bottom of the dish.
- Meanwhile, prepare the mashed potatoes. Peel and dice the potatoes into one-inch cubes. Rinse the cubes well in a colander, then place them in a large pot, add 1/2 tsp salt, and cover with cool water. Place a lid on the pot, bring it up to a boil. Boil the potatoes until they are very tender (about 7-10 minutes).
- Once the potatoes are very tender, drain them in the colander and rinse them briefly with hot water. Let the potatoes drain in the colander as you prepare the kale.
- To the pot used to boil the potatoes, add the chopped kale, 1 Tbsp olive oil, and 2 Tbsp water. Sauté over medium heat just until wilted (3-5 minutes), then remove the kale from the pot.
- Return the drained potatoes to the pot along with the sour cream, milk, dried parsley, oregano, basil, garlic powder, onion powder, 1/4 tsp salt, and some freshly cracked pepper. Mash the potatoes until smooth, then taste and add more salt if needed. Stir in the sautéed kale.
- To make the bowls, add 1/4 of the herby kale mashed potatoes to each bowl, then top with 1/4 of the balsamic roasted mushrooms. Drizzle a spoonful or two of the juices from the bottom of the casserole dish over the mushrooms and mashed potatoes.
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Nutrition
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How to Make Balsamic Roasted Mushrooms with Herby Kale Mashed Potatoes – Step by Step Photos
Preheat the oven to 400ºF. In a small dish, stir together 1 Tbsp olive oil, 3 Tbsp balsamic vinegar, 1/2 Tbsp brown sugar, 1 Tbsp soy sauce, 2 cloves of garlic (minced), and 1/4 tsp dried thyme.
Wash 1 lb. mushrooms and slice any large mushrooms in half. Place the mushrooms in a casserole dish that is large enough for them to be in a single layer. Pour the prepared marinade over top and stir to coat.
Transfer the mushrooms to the oven and roast for 45 minutes, stirring every 15 minutes (the photo above is what they look like BEFORE roasting).
After roasting the mushrooms should be tender and there should be a nice sauce in the bottom of the dish.
While the mushrooms are roasting, prepare the herby kale mashed potatoes. Peel and dice 2 lbs. potatoes into one-inch cubes. Rinse the potatoes well, then transfer them to a large pot, add 1/2 tsp salt, and cover with water. Place a lid on the pot, bring it up to a boil, then boil the potatoes until they are very tender (7-10 minutes). Drain the cooked potatoes in the colander and give them a quick rinse with hot water. Let the potatoes sit in the colander as you quickly sauté the kale.
Add 6oz. chopped kale to the pot used to boil the potatoes, along with 1 Tbsp olive oil, and 2 Tbsp of water. Sauté the kale over medium heat until it is wilted (about 3-5 minutes), then remove it from the pot to a clean bowl.
Add the drained potatoes back to the pot along with 1/2 cup sour cream, 1/2 cup milk, 1 tsp dried parsley, 1/2 tsp oregano, 1/2 tsp basil, 1/4 tsp garlic powder, 1/4 tsp onion powder, 1/4 tsp salt, and some freshly cracked pepper. Mash the potatoes until smooth, then taste and add more salt if needed.
And finally, stir the sautéed kale back into the mashed potatoes.
And then to build your bowls simply add 1/4 of the herby kale mashed potatoes and 1/4 of the balsamic roasted mushrooms to each bowl, and drizzle a little bit of the sauce from the roasting pan over top of each. Then dig in!
This was EXCELLENT! Meat-loving husband approved. I ended up using a mix of fresh herbs from my garden, basil, oregano, sage, chives and thyme, which was fantastic.
One suggestion: add a little garlic to the kale while it’s cooking.
One comment: the mushrooms cook down so small the serving size for the mushrooms is more like 3 than 4.
Thanks Beth!!
Excellent flavors. Family loved it.
Mushrooms and balsamic reduction taste amazing! Never thought to put kale in mashed potatoes but this adds texture and nutrients. Love this, 5 stars!!
I added a few tablespoons of grated Parmesan cheese to the potatoes. Incredible! Next time I’m making waaaaay more mushrooms and might even double the potatoes. ❤️
Is there anything I can substitute the sour cream with to make this dairy free?
You can definitely make the mashed potatoes without the sour cream (maybe add some unsweetened almond milk for moisture), or use a non-dairy sour cream substitute. The mashed potatoes are very flexible.
broth/stock works great and gives great flavor… add a bit of mayo for creaminess…
This was a favorite. My only regret is that I made a single batch, and my mushroom loving husband finished off any chance of left overs. It was so good and easy.
Really good, I couldn’t find the tiny mushrooms so I slice the regular size mushroom and removed the stem. The mash potatoes are for four people, The mushrooms where for one. But they might be the best mushrooms I have ever had, so that may explain why i didn’t feel like it was enough.
Well i think the miahrooma look very done and I am only 1/2 hr. Quick!!
I LOVE this recipe and when I lack inspiration for my weekly meal planning will happily throw this one in. I’ve used a variety of mushrooms and this balsamic sauce always cooks them amazingly! Mashed potatoes are also a great fit with this. A go to favorite for sure!
Very good – will make again!
Excellent excellent excellent! Don’t miss the meat at all. Thank you!
This was so good. I prepped it for lunch all this week. I was lucky to actually get it into my lunch containers.
Added in chicken sausage as it was on sale but this dish definitely doesn’t need it. Hearty and comforting – I love it, Beth!
Amazing meal to serve during Lent – my meat-eating husband loved them. I only roasted 1/2 a pound of mushrooms but will definitely double the recipe next time as the mushrooms really cooked down to half their size. The mashed potatoes on the side were a nice touch.
The mushrooms were delicious, and I never would have thought of pairing them with mashed potatoes and green, but they were such a good combination. I did do my own take on the mashed potatoes though, since I’m not a huge fan of kale. I had a thawed container of frozen spinach that I had intended to use but didn’t. I drained out the water using a towel and then seasoned the spinach with salt, pepper, and a little nutmeg. Then I mixed it into a container of prepared mashed potatoes that I had bought at Aldi. Delicious and a really easy meal to put together for my lunches this week.