This 3-ingredient Holiday Garlic Parmesan Casserole is one of those cozy, no-fuss dishes that feels like a warm hug on a cold Midwestern evening. It’s inspired by the simple church potluck casseroles many of us grew up with—nothing fancy, just comforting flavors that everyone recognizes and loves. With only three ingredients, it’s perfect for busy holiday weeks when you’re juggling school concerts, work, and family gatherings, but still want something homemade on the table. The garlic and parmesan bake into a golden, bubbly top that makes the whole house smell like the holidays, and it’s easy enough that older kids can help assemble it, which makes it feel even more special.
This casserole pairs beautifully with a simple green salad or steamed green beans to balance the richness. It’s also wonderful alongside roasted turkey, ham, or a rotisserie chicken if you’re keeping things easy. I like to add a basket of warm dinner rolls or garlic bread for dipping into the cheesy, garlicky edges of the casserole. If you’re serving it for a casual weeknight, it can even be the star of the meal with a side of roasted carrots or a tray of raw veggies and ranch. For holiday gatherings, tuck it onto the buffet next to stuffing and mashed potatoes—it fits right in with all the cozy favorites.
Ingredients
1 (24–26 oz) bag frozen or refrigerated potato gnocchi OR 2 lbs frozen diced potatoes (hash browns), thawed
2 cups heavy cream (or half-and-half for a lighter version)
1 1/2 cups grated Parmesan cheese, divided (about 1 cup for the sauce, 1/2 cup for topping)
Optional but helpful: 1–2 teaspoons garlic powder or 3–4 cloves fresh garlic, minced, plus salt and black pepper to taste
2 cups heavy cream (or half-and-half for a lighter version)
1 1/2 cups grated Parmesan cheese, divided (about 1 cup for the sauce, 1/2 cup for topping)
Optional but helpful: 1–2 teaspoons garlic powder or 3–4 cloves fresh garlic, minced, plus salt and black pepper to taste
Directions
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