Instructions
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Create the Sauce: Reduce the heat to medium. To the skillet, add the condensed French onion soup and Worcestershire sauce. For a thicker, gravy-like consistency, sprinkle in the dry brown gravy mix and stir to combine. Bring the mixture to a simmer and let it cook for 5 minutes, allowing the flavors to meld. Season with salt and pepper to taste.
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Prepare Potatoes: While the beef mixture simmers, prepare the instant mashed potatoes according to the package directions.
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Assemble the Bake: Transfer the hot beef and onion mixture into a greased 8×8 or 9×9 inch baking dish and spread it into an even layer. Carefully spoon or pipe the prepared mashed potatoes over the beef layer. Use a fork to create decorative swirls on top, which will get crispy and golden. If using, sprinkle the shredded cheese evenly over the potatoes.
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Bake to Perfection: Bake, uncovered, for 20-25 minutes, or until the edges are bubbly and the topping is heated through.
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Optional Broil: For an extra-golden, crispy top, switch the oven to broil for the last 2-3 minutes. Watch closely to prevent burning!
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Serve: Let the bake cool for 5 minutes before serving. This allows the layers to set slightly. Scoop into bowls and enjoy this ultimate comfort food!
 
Chef’s Notes
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Make it Cheesy: Feel free to mix a 1/2 cup of shredded cheese into the mashed potatoes before topping for an extra cheesy experience.
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From-Scratch Potatoes: This is also delicious with homemade mashed potatoes or even store-bought refrigerated mashed potatoes to save time.