Potato-Mushroom Gratin

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   ["Preheat oven to 375 degrees.", "Brush 13x9x2"" glass or oval ceramic baking dish with 2 tablespoons oil.", "Arrange 1/2 of potatoes slightly overlapping in dish.", "Sprinkle with 1/2 teaspoons coarse salt and 1/4 teaspoons pepper.", "Pour 1/3 cup cream over; sprinkle with 1/4 cup cheese.", "Repeat layering 1/3 of potatoes, 1/2 tsp salt, 1/4 tsp pepper, 1/3 cup cream, and 1/4 cup cheese 2 more times.", "Bake uncovered until potatoes are tender, adding additional cream by tablespoons if dry, about 45 minutes.", "Remove from oven; maintain oven temperature.", "Sprinkle thyme and garlic slices over gratin.", "Toss mushrooms in medium bowl with 3 tablespoons oil; sprinkle with coarse salt and pepper.", "Arrange mushroom slices atop gratin around edge of dish.", "Drizzle with 1/4 cup of cream; sprinkle with 1/4 cup of cheese.", "Continue to bake uncovered until mushrooms are tender and potato edges are golden brown, about 20 minutes longer.", "Can make 1 day ahead.", "Cool 1 hour in dish; cover and chill.", "Before serving, cut into 10 pieces.", "Transfer to rimmed baking sheet.", "Cover with foil and rewarm in 350 degree over, 10-15 minutes."]

* Per serving · 4 servings · Values may vary.

No additional tips available.