Cozy Alfredo Potato Lasagna layers tender potatoes, ham, broccoli, and Swiss cheese with creamy Alfredo sauce for a hearty, family-friendly bake that’s simple to assemble and great for weeknights.
Preheat the oven to 400°F (200°C). Lightly grease a 9x13-inch baking dish
Whisk Alfredo sauce and milk in a medium bowl.
Spoon ¼ cup sauce into the baking dish and spread evenly.
Arrange ⅓ of the potato slices over the sauce in a single layer.
Sprinkle 1 tablespoon Parmesan over the potatoes. Season with salt and pepper.
Combine ham, broccoli, and 1½ cups Swiss cheese in a second medium bowl; mix well.
Spread ⅓ of the ham mixture over the potatoes.
Arrange another ⅓ of the potatoes over the ham mixture.
Spread another ⅓ of the ham mixture over the potatoes.
Arrange the final ⅓ of the potatoes on top.
Spread the remaining ham mixture over the potatoes.
Sprinkle the remaining Swiss cheese and remaining Parmesan over the top.
Pour the remaining Alfredo sauce evenly over everything.
Cover the dish tightly with foil and bake for 45 minutes.
Reduce the oven temperature to 350°F (175°C). Uncover and bake until the potatoes are tender, about 25 minutes.
Remove from the oven and let stand for 10 to 15 minutes before serving.
Notes
Tips and Tricks
Slice Thickness - Keep potato slices about ⅛ inch thick for even cooking and clean layers.Sauce Coverage - Spread a thin layer of sauce on the bottom and pour the rest over the top to prevent sticking and dry spots.Even Layers - Keep layers flat and even so the casserole bakes uniformly and slices neatly after resting.Foil Control - Cover for the first bake to steam the potatoes, then uncover to brown the top without drying it out.Resting Time - Let the pan rest 10 to 15 minutes so the layers set and serve without falling apart.
How to Store and Reheat
Store: Cover leftovers and refrigerate for up to 3 days.
Freeze: Wrap tightly and freeze for up to 2 months. Thaw in the refrigerator overnight.
Reheat (Oven): Cover and warm at 325°F until hot, about 20 to 25 minutes. Uncover for the last few minutes to refresh the top.
Reheat (Microwave): Heat individual slices in short bursts to avoid drying, letting them rest briefly between bursts.