Step 1

In a Dutch oven, cook beef over medium heat until no longer pink, breaking beef into crumbles, 6-8 minutes; drain. Add the gravy, vegetables and onion. Spoon half into a greased 2-qt. baking dish or 4 oven-safe 2-cup dishes. Top with mashed potatoes. Drizzle with butter and sprinkle with paprika.

Step 2

Bake, uncovered, at 350° until heated through, 30-35 minutes. Place the remaining beef mixture in a freezer container and freeze for up to 3 months.

Step 3

To prepare frozen casserole: Thaw in the refrigerator; transfer to a greased 2-qt. baking dish. Top with the potatoes, butter and paprika; bake as directed.