Homemade Brussels sprouts au gratin is a new twist for these superfood veggies!

Fresh Brussels sprouts are baked in a creamy cheese sauce and ready to serve in no time! This tasty recipe is creamy, savory, and oh-so-satisfying!

It’s a rich side dish to serve with a simple main dish like roasted chicken, baked ham, or pan-fried fish.

Easy Cheesy Brussels Sprouts

  • Cheesy brussels sprouts are baked in a lightly seasoned cream sauce until they are tender. It’s elegant enough for a holiday but easy enough to make any day of the week.This side can be made ahead of time and baked before serving.Brussels sprouts are packed with flavor and loaded with fiber and nutrients. And when they’re baked in a tasty cheese sauce, even the kids will love them!This easy recipe takes only 15 minutes of prep and can be cooked alongside the main dish like baked chicken, turkey dinner, or meatloaf.

Ingredients for Brussels Sprouts au Gratin

Brussels Sprouts – Choose heavy, firm brussels sprouts that are about the same size, so they cook evenly, and cut the larger halves into quarters if necessary.

Cheese sauce – This cheese sauce is made with heavy cream and cheese (no roux required)! Cheddar cheese and parmesan have bold flavors but try other favorites. Gruyere cheese, mozzarella, or even smoked cheddar would add great flavor.

I prefer to keep the sauce simple, but you can add a couple of cloves of garlic (saute in butter first), a pinch of fresh thyme, or dry mustard if you’d like.

Add-ins – Diced sundried tomatoes, sliced mushrooms, bacon bits, and sliced water chestnuts will add color, texture, and flavor to brussels sprouts.

How to Make Brussels Sprouts Au Gratin

This brussels sprouts gratin recipe is quick and easy to prepare:

A Smooth Sauce

For the best smooth sauce, grate the cheese yourself, as most pre-shredded cheese is processed with anti-caking additives, and it won’t melt as well.

Sprinkle extra cheese on top to bake until bubbly and browned.

  • Cook sprouts: Pan fry brussels sprouts in olive oil until tender-crisp and slightly browned (as per the recipe below). Make the cheese sauce: Prepare the sauce with cream, parmesan, cheddar, and seasonings.Bake: Transfer the sprouts to a casserole dish and pour the cheese mixture overtop. Sprinkle with more cheese and bake browned and bubbly.

Option: Add mix 1 tablespoon of panko breadcrumbs with ½ teaspoon olive oil and add to the cheese on top for a crisp topping.

Storing Brussels Sprouts

  • Make Ahead and store in the fridge for up to 2 days before baking (perfect for prepping ahead for holidays or Christmas dinner). If prepared ahead of time, remove it from the fridge and let it sit on the counter for 30 minutes while the oven preheats. Let leftover brussels sprouts cool to room temperature before storing them in an airtight container for up to five days in the refrigerator. Freeze leftovers in zippered bags for up to 6 weeks, and since this dish contains a dairy sauce, it might separate a bit once it’s reheated.

Did your family enjoy this Baked Brussel Sprouts Gratin? Leave us a rating and a comment below!

Baked Brussel Sprouts Gratin

Nutrition Information

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

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