There’s something incredibly satisfying about a dish that combines the rustic simplicity of potatoes and zucchini with the indulgent touch of melty mozzarella and savory salami. This Potato-Zucchini Casserole with Mozzarella and Salami is the kind of recipe that brings comfort, flavor, and family together around the table. It’s hearty, cheesy, full of layered textures, and adaptable to your preferences.

Why You’ll Love This Potato-Zucchini Casserole

Simple ingredients, big flavor
Perfect combination of creamy, crispy, and savory
Family-friendly and kid-approved
Easy to prep ahead or freeze
Versatile for brunch, lunch, or dinner

Core Ingredients for the Casserole

Vegetables:

3 medium potatoes, peeled and thinly sliced
2 medium zucchinis, thinly sliced

Proteins and Dairy:

1 cup mozzarella cheese, shredded (or more if extra cheesy is your style)
1/2 cup salami, sliced into strips or small cubes
1/4 cup grated Parmesan cheese

Binder & Flavor Enhancers:

3 eggs
3/4 cup milk or cream
1 garlic clove, minced
1/2 teaspoon dried oregano
1/2 teaspoon black pepper
Salt to taste
1 tablespoon olive oil or melted butter (for greasing and drizzling)

Step-by-Step Instructions

Step 1: Prep Your Ingredients

Wash, peel, and thinly slice the potatoes and zucchinis using a mandoline for uniform thickness.
Slice or cube the salami.

Step 2: Preheat and Grease

Preheat your oven to 375°F (190°C).
Grease a 9×13-inch baking dish or a deep round casserole dish.

Step 3: Make the Egg Mixture

In a bowl, whisk together the eggs, milk or cream, garlic, oregano, salt, and pepper.

Step 4: Layer the Casserole

Start with a layer of potatoes, followed by zucchini, a sprinkle of salami, mozzarella, and a few spoonfuls of the egg mixture.
Repeat layers until all ingredients are used, finishing with a generous layer of cheese on top.

Step 5: Bake

Cover with foil and bake for 30 minutes.
Remove foil and bake for another 15–20 minutes, until golden and bubbly.
Let rest for 10 minutes before slicing.

Flavor Variations

Vegetarian: Omit salami and add mushrooms or sun-dried tomatoes.
Spicy Kick: Add chili flakes, spicy salami, or a dash of hot sauce.
Extra Creamy: Mix cream cheese or ricotta into the egg mixture.
Herbaceous: Add fresh basil, parsley, or thyme to boost the aroma.
Crunchy Topping: Add breadcrumbs mixed with butter and Parmesan for a crispy finish.

Serving Suggestions

Pair with a crisp green salad and vinaigrette
Serve with crusty bread or garlic toast
Offer a side of tomato soup for extra coziness
Make it brunch-ready with a mimosa or herbal tea

Make-Ahead Tips

Prep ahead: Assemble the casserole up to a day in advance and store covered in the fridge.
Freeze: Wrap tightly and freeze unbaked for up to 1 month. Thaw in fridge before baking.
Reheat: Bake leftovers at 350°F until warmed through, or microwave individual portions.

Storage and Leftovers

Store leftovers in an airtight container for up to 4 days.
Reheat in oven for crisp edges, or microwave for convenience.
Great for meal prep lunches or next-day dinner.

Nutrition Highlights

Potatoes offer potassium and fiber
Zucchini adds moisture and vitamin C
Mozzarella provides calcium and protein
Salami brings in savory depth and a touch of indulgence
A well-balanced dish with protein, veggies, and healthy fats

Common Questions

Can I use other cheeses?
Absolutely! Try Gruyère, provolone, or even sharp cheddar.

Can I swap the salami for ham or bacon?
Yes—cooked and crumbled bacon or diced ham work great.

Can I make this dairy-free?
Use plant-based milk and cheese alternatives, and skip the Parmesan.

What if I don’t have a mandoline?
Use a sharp knife and aim for thin, even slices to ensure even cooking.

Is this recipe gluten-free?
Yes, it’s naturally gluten-free. Just double-check your salami and seasonings.

Creative Leftover Ideas

Turn leftovers into a casserole sandwich with crusty bread
Cube and toss with greens for a warm potato salad
Use as a filling for a savory crepe or wrap
Chop and fold into a breakfast omelet or frittata

Final Thoughts: Why You’ll Keep Coming Back to This Potato-Zucchini Casserole

Whether you’re cooking for family, prepping weekday meals, or looking to impress at a potluck, this Potato-Zucchini Casserole with Mozzarella and Salami offers an unbeatable balance of simplicity and sophistication. It’s rustic yet refined, rich yet balanced, and endlessly customizable to suit your cravings.

So next time you need a dish that warms the heart and fills the belly, reach for your casserole dish and whip up this savory, cheesy, and satisfying masterpiece.