Zucchini Pizza Casserole
Description
Zucchini Pizza Casserole is a low-carb, family-friendly twist on classic pizza flavors—without the crust. Layers of tender zucchini, savory seasoned meat, rich marinara, and melty cheese come together in a hearty baked casserole that tastes indulgent but feels lighter. Perfect for weeknight dinners, meal prep, or feeding a crowd.
Ingredients (9×13-inch casserole)
Base
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4 medium zucchinis, thinly sliced (lengthwise or rounds)
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1 tsp salt (for sweating zucchini)
Meat Layer
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1 lb ground beef or Italian sausage
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1 small onion, diced
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2 cloves garlic, minced
Sauce & Seasoning
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1½ cups marinara or pizza sauce
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1 tsp Italian seasoning
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½ tsp dried oregano
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¼ tsp red pepper flakes (optional)
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Salt & black pepper to taste
Cheese
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1½ cups shredded mozzarella
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½ cup shredded cheddar or provolone
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¼ cup grated Parmesan
Optional Toppings
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Pepperoni slices
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Mushrooms
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Bell peppers
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Olives
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Fresh basil or parsley for garnish
Instructions
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Prep Zucchini
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Sprinkle zucchini slices with salt and let sit 15 minutes.
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Pat dry thoroughly with paper towels (very important).
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Cook Meat
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Brown meat in a skillet over medium heat.
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Add onion and garlic; cook until softened.
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Drain excess fat.
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Season & Sauce
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Stir in marinara, Italian seasoning, oregano, pepper flakes, salt, and pepper.
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Simmer 5 minutes.
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Assemble
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Preheat oven to 375°F (190°C).
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Layer zucchini in greased baking dish.
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Add meat sauce.
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Sprinkle cheeses evenly on top.
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Add optional toppings if using.
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Bake
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Cover with foil and bake 25 minutes.
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Uncover and bake 10–15 minutes until bubbly and golden.
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Rest & Serve
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Let rest 10 minutes before slicing.
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Garnish with herbs.
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 Servings
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Serves: 6–8 people
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Serving size: 1 generous square
 Notes & Tips
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Drain zucchini well to prevent a watery casserole.
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Use a mandoline for even zucchini slices.
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For extra crisp edges, broil for 2–3 minutes at the end.
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Want it vegetarian? Swap meat for sautéed mushrooms and spinach.
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Make it keto by using sugar-free marinara.
 Nutritional Information (Approx. per serving)
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Calories: 320–350
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Protein: 22–26g
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Fat: 22g
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Carbs: 8–10g
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Fiber: 2–3g
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Sugar: 4g
(Values vary based on meat and cheese used)
 Health Benefits
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Low-carb & gluten-free
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High in protein for satiety
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Zucchini adds fiber, vitamin C, potassium
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Great alternative for pizza cravings without refined carbs
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Suitable for keto, diabetic-friendly, and weight-conscious diets
 Recipe Q&A
Q: Can I make this ahead of time?
A: Yes! Assemble up to 24 hours ahead, refrigerate, and bake when ready.
Q: Can I freeze it?
A: Absolutely. Freeze baked or unbaked for up to 3 months. Thaw overnight before reheating.
Q: How do I keep it from getting watery?
A: Salt and dry the zucchini well, and avoid overly watery sauces.
Q: Can I use yellow squash instead?
A: Yes—or do a mix of both for color and flavor.
Q: What goes well with it?
A: Simple green salad, garlic bread, or roasted vegetables.