Ingredients

• 1/2 tablespoon butter
• 2 heads fennel, thinly sliced
• 1 cup coarsely grated Parmesan
• 1 clove garlic, minced
• Kosher salt
• 1 tablespoon mustard
• 2 cups heavy cream

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Instructions

1. Preheat the oven to 350 degrees F. Butter a 9 by 13-inch baking dish. Add the fennel, Parmesan, garlic, and 1/4 teaspoon salt and toss to combine.
2. Whisk the mustard into the heavy cream and pour over the fennel mixture. Bake until bubbling and golden, about 1 hour.