Each single yr I discover a approach to outdo myself at Thanksgiving. Whereas I completely recognize the entire classics – particularly my mother-in-law’s heavenly mashed potatoes – I additionally take nice pleasure in placing one thing new and totally different on the desk. See for your self in my final Thanksgiving roundup!
This beautiful mushroom and brussels sprouts au gratin is an upgraded model of the inexperienced bean casserole everyone knows and love. It’s received all of the issues: brussels sprouts that soften in your mouth, toasty thyme-infused buttery mushrooms, and a next-level “fried” onion and walnut topping.
Sure, it’s going to be a showstopper in your Thanksgiving desk, however don’t look ahead to Thanksgiving to attempt it! It will be a fantastic pairing together with your Sunday evening roasted rooster. My gosh, you’re going to like it! Byeeeee inexperienced beans.
Elements on this mushroom and brussels sprouts au gratin
Tender brussels sprouts, savory mushrooms, crispy onions, and a creamy parmesan-gruyere cheese sauce — this au gratin recipe is mindblowly scrumptious. We’re skipping the cream of mushroom soup right here, folks! Right here’s what you’ll must make it:
- Veggies: you’ll want contemporary brussels sprouts, yellow onions, and child bella mushrooms for this au gratin recipe.
- Butter: we’re including salted butter to prepare dinner down the veggies and to begin the cheese sauce.
- For the crispy onions: you’ll be tossing the onions in a combination of panko bread crumbs, parmesan cheese, chopped walnuts (the important thing for additional crunch!), garlic powder, and salt.
- For the mushrooms: prepare dinner down these beautiful mushrooms with butter, salt, pepper, contemporary thyme, crimson pepper flakes, and garlic.
- For the sauce: the silky, savory sauce is made with butter, all-purpose flour, low-sodium rooster broth, milk, parmesan cheese, gruyere, salt & pepper.
Customise this brussels sprouts gratin
Sure, there are straightforward methods to make this au gratin your personal! Right here’s what I can suggest:
- Make it gluten-free. Merely use gluten free bread crumbs and a 1:1 gluten free all objective flour.
- Maintain it vegetarian. Go for vegetable broth instead of the rooster broth.
- Select your cheese. I like the combo of parmesan and gruyere cheese, however you may additionally use cheddar, fontina, or a smoky gouda!
- Go nut free. I like the additional crispiness that chopped walnuts add to the crispy onions, however if you happen to’re nut free you may merely add extra bread crumbs.
On the lookout for an additional savory kick?
When you’re not serving vegetarians I recommend including cooked bacon or ham for additional scrumptious savory taste!
The best way to make this brussels sprouts and mushroom au gratin
- Prep the brussels sprouts. Begin by blanching the brussels sprouts, then draining them and working them underneath very chilly water in order that they cease cooking.
- Prep the onions. Cook dinner the onions down in a bit butter, then toss them with panko bread crumbs, parmesan, walnuts, garlic powder, and salt.
- Cook dinner the mushrooms. Subsequent, prepare dinner the mushrooms with butter in the identical skillet the onions had been in till they’re good and golden. Then stir within the thyme, crimson pepper flakes, and garlic. Add them to the baking pan with the brussels sprouts.
- Make the sauce. Soften butter in the identical skillet, whisk within the flour till a paste varieties, then slowly stream within the broth and milk and whisk till properly mixed. Convey the combination to a boil, then cut back to a simmer and let it thicken to a gravy texture. Take away it from the warmth and stir within the parmesan, gruyere, salt & pepper. Style and alter the seasonings.
- Pour, high & bake. Pour the cheese sauce into the pan with the brussels sprouts and mushrooms and stir to coat every part. Evenly high the pan with the onions, bake it up till golden brown and bubbly, and luxuriate in!
Make it forward of time
You possibly can simply make this brussels sprouts gratin forward to save lots of time throughout Thanksgiving. Right here’s what I like to recommend:
- Put together the recipe as directed however don’t bake it. Wrap the casserole dish in foil and place it within the fridge as much as 2 days forward.
- As soon as prepared, take away the foil and bake the au gratin till the onions are good and golden brown and the sauce is bubbly.
- Serve instantly with all of your favourite Thanksgiving dishes!
Storing & reheating ideas
- To retailer: merely retailer this broccoli cauliflower gratin within the fridge in particular person, hermetic containers or cowl the whole pan and place it within the fridge. It would keep good for as much as 5 days.
- To reheat: reheat particular person parts within the microwave or place the pan again within the oven till heated by way of.
Extra Thanksgiving recipes you’ll love
Get all of my Thanksgiving recipes right here!
I hope you’re keen on this mushroom and brussels sprouts au gratin! When you make it make sure you go away a remark and a score so I understand how you preferred it. Get pleasure from, xo!
Mushroom & Brussels Sprouts Au Gratin with Crispy Parmesan Walnut Panko ‘Fried’ Onion
Great mushroom and brussels sprouts au gratin with a luscious, creamy cheese sauce and a crispy parmesan walnut “fried” onion topping. This distinctive twist on conventional au gratin recipes is stuffed with scrumptious, savory flavors you may love. Good for Thanksgiving or pairing with weeknight dinners!
Elements
- Brussels Sprouts and Onions:
- 2 kilos Brussels sprouts, trimmed, outer leaves eliminated and sliced in half
- 1 tablespoon salted butter, melted
- 2 yellow onions, thinly sliced
- ½ cup panko bread crumbs, gluten-free if desired
- ½ cup grated parmesan cheese
- ½ cup very finely chopped uncooked walnuts
- ½ teaspoon garlic powder
- ½ teaspoon kosher salt
- Mushrooms:
- 1 tablespoon salted butter
- 16 ounces child bella mushrooms, sliced
- ¼ teaspoon kosher salt
- Freshly floor black pepper
- 1 tablespoon contemporary thyme leaves
- ¼ teaspoon crimson pepper flakes
- 3 garlic cloves, minced
- Sauce:
- ¼ cup salted butter
- ⅓ cup all-purpose flour (or 1:1 gluten-free all-purpose flour)
- 1 ½ cups low-sodium rooster broth (or vegetable broth), plus one other ½ cup extra, if crucial
- 1 cup entire milk or unsweetened almond milk
- ½ cup grated parmesan cheese
- 4 ounces gruyere cheese, shredded
- ½ teaspoon kosher salt, plus extra to style
- Numerous freshly floor black pepper
Directions
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Preheat the oven to 375°F. Grease a 2-quart baking dish or 9×13-inch baking pan.
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Put together the Brussels sprouts: Convey a big pot of generously salted water to a boil over excessive warmth. Add the brussels sprouts and blanch, 2 minutes. Drain brussels and run underneath VERY chilly water to cease the cooking course of. Put aside.
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Put together the onions: In a big skillet, soften the butter over medium warmth. Add the onions and prepare dinner till softened, about 8 minutes. Switch the onions to a big bowl and add the panko bread crumbs, parmesan cheese, walnuts, garlic powder, and salt; toss properly to coat the onions. Put aside.
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Cook dinner the mushrooms: Return the identical giant skillet to medium warmth and soften the butter. Add the mushrooms, salt, and pepper. Cook dinner mushrooms, stirring often, till all liquid is absorbed from mushrooms and they’re golden brown; 8 to 10 minutes. Stir within the thyme, crimson pepper flakes and garlic and prepare dinner, stirring till aromatic, 1 minute. Switch to the baking pan with the Brussels sprouts and toss to mix.
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Put together the sauce: Return the identical giant skillet to medium warmth and soften the butter. Whisk within the flour and prepare dinner till a paste varieties, then slowly stream within the broth after which the milk, always whisking away any lumps, till easy and well-combined. Enhance warmth and produce combination to a boil, then cut back the warmth to medium-low and simmer, whisking often, till sauce thickens to the consistency of gravy, 5 minutes. (If the sauce will get too thick, you may add as much as ½ cup extra broth.) Take away from warmth and stir within the parmesan, gruyere, salt, and pepper. Style and alter seasoning if crucial.
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Pour the sauce over the Brussels and mushrooms and provides it a mild stir to coat the brussels and mushrooms. Evenly distribute the onion combination excessive. Bake, uncovered, till the topping is golden brown and the sauce is bubbly, 25 to 35 minutes.
Recipe Notes
See the total put up for ideas, methods, and nice methods to customise this recipe!
Diet
Serving: 1serving (based mostly on 12)Energy: 226calCarbohydrates: 16.1gProtein: 11.1gFats: 14.5gSaturated Fats: 6.3gFiber: 4.1gSugar: 3.6g
Recipe by: Monique Volz // Formidable Kitchen | Pictures by: Eat Love Eats
