Pepper Jack Roasted Garlic Scalloped Potatoes: Crockpot

This slow cooker scalloped potato casserole is the definition of set-it-and-forget-it comfort food. Thinly sliced Yukon Gold potatoes are layered with sweet caramelized onions, bathed in a rich roasted garlic cream sauce, and crowned with melty pepper jack cheese and crispy fried onions.

The result is a velvety, savory side dish that tastes like you spent hours in the kitchen, but the slow cooker does all the work. Perfect for holidays, potlucks, or a cozy weeknight dinner, this recipe turns simple ingredients into something truly special.

Scalloped potatoes are a classic side dish, but they often require constant attention and a hot oven. This version flips the script: everything goes into a slow cooker, and the result is just as creamy and comforting as the baked original. The Yukon Gold potatoes stay tender without turning mushy, thanks to the gentle heat of the slow cooker.

The roasted garlic cream sauce infuses every layer with deep, savory flavor, while the pepper jack adds a gentle kick. And the crispy fried onions on top provide a delightful crunch that contrasts with the creamy potatoes. It's a hands-off dish that feels indulgent and impressive.

Ingredients

Why this recipe works

The slow cooker's low, steady heat works magic on potatoes. Unlike a hot oven that can scorch the edges or leave the center undercooked, the slow cooker cooks the potatoes gently and evenly.

The Yukon Gold variety is especially well-suited because it holds its shape while becoming perfectly fork-tender. The cream sauce thickens slowly, coating each slice and creating a luscious, cohesive casserole.

Layering the ingredients, rather than stirring them together, is key to this recipe. The potatoes cook in their own steam and the sauce, so they don't break apart.

The caramelized onions add sweetness in pockets, and the pepper jack cheese melts into a golden blanket on top. The crispy French-fried onions stay crunchy if added at the start, providing a textural contrast that makes every bite interesting.

Notes and substitutions

Yukon Gold potatoes are the best choice here because they have a buttery flavor and a medium starch content that holds up well in the slow cooker. Russets will also work, but they can become waterlogged and fall apart more easily. If using russets, slice them a bit thicker, about 1/4 inch, to help them hold their shape.

The roasted garlic cream sauce can be made ahead or substituted with a high-quality store-bought Alfredo sauce for a shortcut. The caramelized onions can also be prepared in advance and refrigerated for up to a week. This recipe is flexible: use a 6-quart slow cooker for the best results, and adjust the cook time based on your specific model.

• Yukon Gold potatoes: Use russet potatoes, but note they are starchier and may need a slightly shorter cook time to avoid mushiness.
• Pepper jack cheese: Substitute Monterey Jack with a pinch of red pepper flakes, or use sharp cheddar for a different flavor.
• Roasted garlic cream sauce: Use a store-bought Alfredo sauce or a béchamel with added roasted garlic for a shortcut.
• French-fried onions: Use crispy fried shallots or crushed potato chips for a crunchy topping, if desired.

Equipment

• 6-quart slow cooker (Crockpot)
• Mandoline slicer
• Mixing bowl
• Measuring cups
• Serving spoon
• White dinner plate