Cheesy Brussels Sprouts Gratin Recipe | Brussels Sprouts Casserole (2024)

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by Todd + Diane

If I were to confess some of my guilty pleasures in life, then these brussels sprouts gratin photographs would convey much of what I’m already about to say. Warm melted cheese, gooey-salty-decadent-calorie-laden cheese on top of perfectly fresh and healthy vegetables should be illegal. I think of this often when a gorgeous bowl of green veggies gaze back at me with fresh, vibrant eyes. Instead of reaching for the steamer and ideas of a raw salad, I reach for the rind of parmesan cheese, cream and block of butter.Cheesy Brussels Sprouts Gratin Recipe | Brussels Sprouts Casserole (1)

A Family Favorite Brussels Sprouts Gratin Recipe

Over 98.6572% of the time I prepare my vegetables very simply in a light saute or raw, crunchy salad. This is how I appreciate my vegetables the most and sums up the way I ate as a vegetarian for almost twenty years. But when the air begins to crisp up to cooler embrace, I sense that Fall is near. That’s when I’m guilty of killing my vegetables in a casserole pool of cheese and cream.Knowing when to stop eating is something I’m still lacking at. My mind tells me that if the food is delicious, eat another plate before it goes to waste.

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Cheesy Brussels Sprouts Gratin Recipe | Brussels Sprouts Casserole (2)

A Cheesy Brussels Sprouts Treat for the Holidays

Balance is something I’ve always been thoughtful of and with all the travel we’ve been on, I realize that I’ve ignored the gym more than I should. Perhaps it’s the lack of fitness and exercise that makes eating two portions of food laden with guilt. I’m putting exercise back on my priority list before the holiday season feasting begins.Thankfully I don’t eat my vegetables like this every day, but when I do, I really appreciate every bite of dreamy, rich decadence. And then I always try to remember that there’s vegetable hidden somewhere in all this cheesy mess.

My goal for the next few months is to get back on cardio track again so that I can enjoy more of these warm, cheesy casseroles. This recipe for Brussels sprouts gratin is one of my favorite Brussels sprouts dishes for the fall because there’s comfort in every bite. Guaranteed this will be at on our Thanksgiving menu because it’s so simple, wonderful and a pleasure to eat.

-diane

Note on cooking times: Brussels sprouts can very tremendously in size, ranging from the size of a large egg to as small as a 5-cent coin. Make sure to adjust your cooking times depending on the size that you end up cooking. Also, try to select all the same sizes for consistent cooking.

More of our FavoriteBrussels Sprouts Recipes: and More here.

This recipe was originally published in 2012 and re-published in 2020.

Cheesy Brussels Sprouts Gratin Recipe | Brussels Sprouts Casserole (5)

Cheesy Brussels Sprouts Gratin

Yield: 4 Servings

Prep Time: 15 minutes mins

Cook Time: 1 hour hr

Total Time: 1 hour hr 15 minutes mins

Sizes of brussels sprouts can vary quite a bit ranging from the size of a large egg to a small coin. So adjust your cooking times based on the size. Select all the same sizes for consistent cooking. This size difference can affect the results of this recipe. And of course, add more cheese if you like!

4.50 from 8 votes

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Ingredients

  • 2 pounds (910g) Brussels sprouts (approximately) , halved
  • 2 Tablespoons (30g) butter
  • 2 Tablespoons (15g) flour
  • 1-1/4 cups (300ml) milk
  • 1 cup (100g) grated parmesan cheese , extra for topping if you like
  • 1/2 teaspoon kosher salt
  • 1/4 cup (60ml) mayonnaise
  • black pepper to taste

Instructions

  • Pre-heat oven to 350° F.

  • Clean, trim stems of Brussels sprouts. Cut in half and keep all of loose leaves. Fill medium stock pot half way with water, bring to boil. Add Brussels sprouts, stirring in hot water and blanch quickly for about 2 minutes or until they turn bright green. Immediate drain. Do not cook Brussels sprouts and make them soft!

  • In large pan melt butter, then add flour and quickly stir with whisk to combine and remove clumps. Turn off heat.

    Add milk, salt, cheese, mayo and black pepper. Stir until cheese is melted.

  • Add Brussels sprouts and combine with cheese mixture. Pour into baking dish and bake for about 40-50 minutes or until Brussels sprouts are tender. For extra cheese crust, top with grated parmesan cheese before baking.

Nutrition Information per Serving

Calories: 375kcal, Carbohydrates: 25g, Protein: 18g, Fat: 25g, Saturated Fat: 10g, Trans Fat: 1g, Cholesterol: 44mg, Sodium: 875mg, Potassium: 949mg, Fiber: 9g, Sugar: 6g, Vitamin A: 2138IU, Vitamin C: 193mg, Calcium: 395mg, Iron: 4mg

Course: Side Dish, Vegetables

Cuisine: Oven, Stove Top, Vegetable, Vegetarian

Calories: 375

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62 comments on “Cheesy Brussels Sprouts Gratin”

  1. Andrea November 23, 2022 @ 1:03 pm Reply

    I make these every Thanksgiving. They are just fabulous. Thank you for such a delicious recipe!Cheesy Brussels Sprouts Gratin Recipe | Brussels Sprouts Casserole (9)

    • Todd + Diane November 27, 2022 @ 3:10 pm Reply

      Thanks Andrea! So glad you enjoy the recipe.

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Cheesy Brussels Sprouts Gratin Recipe | Brussels Sprouts Casserole (2024)
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