Mashed Cauliflower Au Gratin

8 ingredients
3 steps

Ingredients

  • 2 large heads cauliflower, broken into florets
  • 1-1/2 cups shredded Parmesan cheese
  • 1 cup shredded Colby-Monterey Jack cheese
  • 6 tablespoons butter, cubed
  • 3/4 teaspoon garlic salt
  • 1/2 teaspoon Montreal steak seasoning
  • 1 cup Italian-style panko (Japanese) bread crumbs
  • 1/4 cup butter, melted

Directions

  1. 1
    Preheat oven to 350°. Place cauliflower in a stockpot; add water to cover. Bring to a boil. Reduce heat; simmer, uncovered, until very tender, 10-12 minutes. Drain; transfer to a large bowl. Mash cauliflower; stir in cheeses, cubed butter and seasonings. Transfer to a greased 3-qt. or 13x9-in. baking dish.
  2. 2
    In a small bowl, mix bread crumbs and melted butter until evenly coated; sprinkle over cauliflower mixture. Bake, uncovered, until heated through and topping is golden brown, 40-50 minutes.
  3. 3
    Cool unbaked casserole; cover and freeze. To use, partially thaw in refrigerator overnight. Remove from refrigerator 30 minutes before baking. Preheat oven to 350°. Bake casserole as directed, increasing time as necessary to heat through and for a thermometer inserted in center to read 165°.

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