Can I make the special sauce ahead of time?
Yes. Mix the mayo, ketchup, dill pickles, and sugar up to 2 days ahead and store covered in the refrigerator.
How do I know when the potatoes are fully baked?
Pierce with a fork or knife; the inside should be very soft and tender, typically 50–60 minutes at 400°F depending on size.
Can I use ground turkey or plant-based meat instead?
Yes. Ground turkey works directly; for plant-based, use a crumbled variety and watch seasoning closely as flavors vary by brand.
What type of cheese works best?
Cheddar, American, or a blend melts smoothly. Add after the potatoes come out of the oven while they're still hot so it melts evenly.
Can I prep these potatoes in advance?
Bake potatoes up to 1 day ahead, wrap in foil, and refrigerate. Reheat wrapped in foil at 350°F for 15–20 minutes, then top with warm beef and sauce.