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Here is a warm, cozy, detailed and unique article about “This 3-Ingredient Holiday Garlic Parmesan Casserole”, including a clear, step-by-step method to make it:

This 3-Ingredient Holiday Garlic Parmesan Casserole — A Cozy Classic Made Simple

When the holiday season rolls around, people crave comfort: warm dishes, familiar aromas, and flavors that feel like home. That’s exactly why this 3-Ingredient Holiday Garlic Parmesan Casserole has become such a favorite. It’s unbelievably simple, surprisingly rich, and perfectly comforting — the kind of side dish that disappears before it even has time to cool.

What makes this casserole so special is the way three humble ingredients come together to create something indulgent. It’s the perfect choice when you want holiday magic without spending hours in the kitchen.

Why This Casserole Works So Well

Only three ingredients — perfect for busy days.
Garlicky, cheesy richness that pairs with almost any holiday meal.
Creamy and cozy, yet crisp on top, giving that satisfying contrast.
A great recipe for beginners, young cooks, or anyone who loves simple, delicious food.

Ingredients

You truly need just three main ingredients:

Frozen or fresh potato gnocchi – soft, pillowy pasta that becomes tender and creamy in the oven.
Heavy cream (or half-and-half) – creates a rich sauce as it bakes.
Grated Parmesan cheese – melts into the cream and forms a savory, golden crust.

Optional but recommended add-ins:

Garlic powder or fresh minced garlic
Black pepper
Parsley for a pop of holiday color

How to Make the Holiday Garlic Parmesan Casserole (Step by Step)

Step 1: Prepare Your Baking Dish

Preheat your oven to 375°F (190°C).
Lightly grease a medium casserole dish with butter or a little oil.
This prevents sticking and helps the edges turn perfectly golden.

Step 2: Add the Gnocchi

Spread the gnocchi evenly across the bottom of the dish.
No boiling is needed — the gnocchi will cook in the sauce as it bakes, absorbing all that garlicky, cheesy goodness.