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  1. Food and Cooking
  2. Recipes
  3. Brussels Sprouts Casserole

Brussels Sprouts Casserole

Meet your family's new favorite Thanksgiving side dish.

Updated: Oct 19, 2023
Star FillStar FillStar FillStar FillStar Fill
5
3 Ratings
the pioneer woman's brussels sprouts casserole recipe brussels sprouts gratin
Hector Sanchez
Yields:
6 - 8 serving(s)
Prep Time:
20 mins
Total Time:
40 mins
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the pioneer woman's brussels sprouts casserole recipe brussels sprouts gratin

The combination of Brussels sprouts and bacon has risen in popularity quite dramatically in recent years, and for good reason. Bacon makes the once villainized cabbage-like vegetable downright irresistible. With cream, cheese, and dijon mustard, this easy casserole is reminiscent of a classic baked gratin. The lemony panko bread crumb topping adds a bright and crispy contrast most would consider a major upgrade. Bonus: To limit the amount of dishes, you can cook and caramelize the Brussels sprouts in an ovenproof skillet. (Cast iron is an excellent choice!) These sprouts make a wonderful Thanksgiving side dish with roasted turkey and all the fixings, but you can make 'em any night of the week with a roasted chicken or steak dinner.

How do you prepare Brussels sprouts?

Brussels sprouts are most commonly sold off the stalk, which means the ends that connect all the leaves are most likely browned and dried out. Trim off that part first. Next, inspect the outer leaves and pull off any bruised or discolored looking pieces. (This often happens naturally when you cut off the bottoms.) From there, the rest of how you prep will depend on the recipe. For this one, simply half the sprouts and you're ready to roll.

Do you need to blanch Brussels sprouts before baking them?

For this recipe, there's no need to blanch these sprouts. Before these go in the oven, they're cooked in a skillet to get them golden, caramelized, and slightly tender. They'll get totally tender when they're baked in the oven.

Should you soak Brussels sprouts before cooking them?

Some recipes call for soaking sprouts in water or salt water before cooking them to achieve a tender texture. But that's not necessary, especially here. You do, of course, want to make sure the Brussels sprouts are well cleaned before cooking with them, but you don't have to worry about soaking to tenderize them. Since the sprouts cook once on the stovetop and again in the oven, they'll get perfectly tender without the extra step of soaking.

What pairs well with Brussels sprouts?

As with most things, smoky bacon pairs well with Brussels sprouts' natural nutty, almost sweet flavor. Adding melty cheese—like cheddar, mozzarella, Gruyère, or Monterey Jack—is never a bad idea either.

Can I make this dish ahead of time?

Brussels sprouts can be trimmed and halved up to 2 days in advance. Though the leftovers are delicious, it's best to serve this casserole immediately. Luckily, once the vegetables are chopped and prepped, the rest comes together quickly.

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Ingredients

For the Casserole:

  • 6

    slices bacon, chopped

  • 2 lb.

    Brussels sprouts, ends trimmed and halved

  • 1/2

    yellow onion, chopped

  • 1 tsp.

    salt

  • 1/2 tsp.

    ground black pepper

  • 1/8 tsp.

    cayenne pepper

  • 3/4 cup

    heavy cream

  • 2 tsp.

    Dijon mustard

  • 1 Tbsp.

    lemon juice

  • 4 oz.

    monterrey jack cheese, shredded (about 1 cup), divided

  • 4 oz.

    sharp cheddar cheese, shredded (about 1 cup), divided

For the Topping:

  • 1 Tbsp.

    olive oil

  • 1/2 cup

    panko

  • 1 Tbsp.

    chopped parsley

  • 1 tsp.

    lemon zest

  • 1/4 tsp.

    salt

  • 1/4 tsp.

    ground black pepper

Directions

    1. Step 1For the Brussels sprouts: Preheat the oven to 375°F. 
    2. Step 2In a large skillet, cook the bacon oven medium heat until lightly golden and just crispy, 6 to 8 minutes. Using a slotted spoon, remove the bacon from the skillet and drain on paper towels. Set aside.
    3. Step 3Add the Brussels sprouts and onion to the skillet and stir well to coat with the bacon grease. Cook over medium heat, without stirring, until the sprouts start to brown and caramelize, 6 minutes. Stir in the salt, black pepper, and cayenne, and continue to cook until the Brussels sprouts are almost tender, 6 minutes more.
    4. Step 4For the topping: In a small bowl, combine the oil, panko, parsley, lemon zest, salt, and pepper. Stir well to combine.
    5. Step 5Remove the Brussels sprouts from the heat and stir in the heavy cream, mustard, and lemon juice. Stir in half of the cheeses and half of the reserved bacon. Transfer to a greased 2-quart casserole dish in an even layer. Top with the remaining half of the cheeses and bacon and sprinkle the panko mixture all over. Bake until the casserole is bubbling around the edges and the panko mixture is golden brown, 18 to 20 minutes. Let rest 5 minutes, then serve.   
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