6 to 8 servings
2 cups (8 ounces) shredded Colby Jack cheese, divided
1 (9-inch) frozen ready-to-bake deep-dish pie shell, thawed
1/2 pound thinly sliced deli roast beef, chopped
1 cup (1/2 pint) heavy cream
1/4 teaspoon dry mustard
1/4 teaspoon black pepper
Preheat the oven to 325°F.
Sprinkle 1 cup cheese evenly over the bottom of the pie shell; top with the roast beef then with the remaining 1 cup cheese.
In a medium bowl, whisk together the remaining ingredients; pour over the cheese.
Bake for 55 to 60 minutes, or until a knife inserted in the center comes out clean. Serve immediately.