Roasted Brussels Sprouts Gratin - A creamy decadent way to enjoy Brussels sprouts. This easy Brussels sprouts casserole recipe is made with less than 10 ingredients!
Preheat the oven to 400 degrees. Melt 5 tablespoons of butter and place in a 3-quart baking dish. Trim the Brussels sprouts and cut each sprout into 4 slices. Toss them in the melted butter, sprinkle with salt and pepper, and place the baking dish in the oven to roast. Roast the sprouts for 20 minutes, flipping once in the middle.
Meanwhile, place 1 tablespoon butter in a skillet. Set over medium heat and add the chopped onions and garlic. Sauté for 3-5 minutes to soften. Then add in the cream cheese and stir to melt. Add the half & half and nutmeg and mix well. Salt and pepper to taste.
Once the Brussels sprouts are roasted, pour the cream mixture over the sprouts. Sprinkle the shredded cheese over the sprouts and toss to mix. Finally sprinkle the crumbled butter crackers over the top.
Place the baking dish back in the oven and bake another 15-20 minutes, until bubbly. Serve warm.