Spinach Quiche with Potato Crust

1 package (24 ounces) refrigerated mashed potatoes
2 tablespoons olive oil, divided
8 ounces sliced fresh mushrooms
2 garlic cloves, minced
5 ounces frozen chopped spinach, thawed and squeezed dry (about 1/2 cup)
6 bacon strips, cooked and crumbled or 1/3 cup bacon bits
2 teaspoons minced fresh rosemary or 1/2 teaspoon dried rosemary, crushed
4 large eggs
1 cup 2% milk
1/4 teaspoon pepper
1 cup (4 ounces) shredded cheddar cheese

Preheat oven to 350°. Press mashed potatoes onto bottom and up sides of a greased 9-in. deep-dish pie plate. Brush with 1 tablespoon oil. Bake 30 minutes or until edges are golden brown.

Meanwhile, in a large skillet, heat remaining oil over medium-high heat. Add mushrooms; cook and stir 3-4 minutes or until tender. Add garlic; cook 1 minute longer. Remove from heat. Stir in spinach, bacon and rosemary; spoon over crust. In a small bowl, whisk eggs, milk and pepper until blended; stir in cheese. Pour over mushroom mixture.

Bake 25-30 minutes longer or until golden brown and a knife inserted near the center comes out clean. Let stand 10 minutes before cutting. Makes 8 servings.