Zucchini Pizza Casserole Recipe
Introduction
Zucchini Pizza Casserole is a delicious and creative way to enjoy your favorite pizza flavors with a healthy twist. Using shredded zucchini as a crust, this hearty casserole combines savory ground beef, melty cheese, and classic pizza toppings for a satisfying dinner everyone will love.

Ingredients
- 4 cups shredded zucchini (Make sure to salt and drain to prevent sogginess.)
- 1/2 teaspoon salt (Draws excess moisture from zucchini.)
- 2 large eggs (Binds the crust and adds richness.)
- 1/2 cup grated Parmesan cheese (Enhances flavor and provides structure.)
- 1 pound ground beef (Offers a hearty, savory filling.)
- 1/2 cup chopped onion (Adds sweetness and aromatic depth.)
- 2 cups pizza sauce (Brings brightness and flavor.)
- 1 green bell pepper, chopped (Contributes crunchy texture.)
- 1/2 cup sliced mushrooms (Adds earthy flavor.)
- 1/2 teaspoon dried oregano (Traditional pizza herb.)
- 1/2 teaspoon garlic powder (Offers savory depth.)
- 1/4 teaspoon black pepper (Adds subtle heat.)
- 2 cups shredded mozzarella cheese (Melts into a gooey topping.)
- 1 cup shredded cheddar cheese (Adds a sharp, tangy bite.)
Instructions
- Step 1: Preheat your oven to 400°F (200°C).
- Step 2: Toss the shredded zucchini with salt and let it rest for about 10 minutes.
- Step 3: Drain excess moisture from the zucchini using a clean kitchen towel.
- Step 4: In a mixing bowl, combine the drained zucchini with eggs, Parmesan cheese, and half of the mozzarella cheese.
- Step 5: Grease a 9×13-inch baking dish and press the zucchini mixture evenly into the bottom.
- Step 6: Bake the crust for about 20 minutes until lightly browned.
- Step 7: Cook ground beef and chopped onion in a skillet until browned, about 7-10 minutes.
- Step 8: Mix the pizza sauce, green bell pepper, mushrooms, oregano, garlic powder, and black pepper into the beef.
- Step 9: Spread the beef mixture over the baked crust evenly.
- Step 10: Sprinkle the remaining mozzarella cheese and cheddar cheese on top.
- Step 11: Bake again for another 20 minutes until cheese is melted and bubbly.
- Step 12: Allow to cool for a few minutes, then slice and serve warm.
Tips & Variations
- For a vegetarian version, substitute ground beef with cooked lentils or your favorite plant-based meat alternative.
- Be sure to squeeze out as much water as possible from the zucchini to keep the crust from becoming soggy.
- Add extra herbs like fresh basil or red pepper flakes for a flavor boost.
- Use a mix of cheeses like provolone or gouda for different textures and flavors.
Storage
Store leftover casserole covered in the refrigerator for up to 3 days. Reheat in the oven at 350°F (175°C) for 10-15 minutes, or in the microwave until warmed through. For longer storage, freeze in an airtight container for up to 2 months; thaw overnight in the fridge before reheating.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I make the zucchini crust ahead of time?
Yes, you can prepare and bake the zucchini crust a day ahead. Just keep it covered in the refrigerator and add the toppings before the final bake.
What if my zucchini crust is too watery?
Draining the zucchini thoroughly with a clean kitchen towel is key. If it’s still watery, you can press it longer or add a small amount of almond flour or breadcrumbs to help absorb moisture.
Print
Zucchini Pizza Casserole Recipe
- Total Time: 55 minutes
- Yield: 8 servings 1x
- Diet: Low Carb
Description
This Zucchini Pizza Casserole is a delicious, low-carb alternative to traditional pizza, combining a savory zucchini crust with a hearty beef and vegetable topping. It’s perfect for dinner nights when you’re craving comfort food without the extra carbs from dough. Baked to perfection with melted mozzarella and cheddar cheese, this dish brings all the flavors of pizza in a nutritious casserole form.
Ingredients
Crust
- 4 cups shredded zucchini (Make sure to salt and drain to prevent sogginess.)
- 1/2 teaspoon salt (Draws excess moisture from zucchini.)
- 2 large eggs (Binds the crust and adds richness.)
- 1/2 cup grated Parmesan cheese (Enhances flavor and provides structure.)
- 1 cup shredded mozzarella cheese (Half of the total mozzarella for the crust.)
Beef Topping
- 1 pound ground beef (Offers a hearty, savory filling.)
- 1/2 cup chopped onion (Adds sweetness and aromatic depth.)
- 2 cups pizza sauce (Brings brightness and flavor.)
- 1 green bell pepper, chopped (Contributes crunchy texture.)
- 1/2 cup sliced mushrooms (Adds earthy flavor.)
- 1/2 teaspoon dried oregano (Traditional pizza herb.)
- 1/2 teaspoon garlic powder (Offers savory depth.)
- 1/4 teaspoon black pepper (Adds subtle heat.)
Toppings
- 1 cup shredded mozzarella cheese (Remaining half for topping.)
- 1 cup shredded cheddar cheese (Adds a sharp, tangy bite.)
Instructions
- Preheat Oven: Preheat your oven to 400°F (200°C) to prepare for baking the casserole.
- Prepare Zucchini: Toss the shredded zucchini with 1/2 teaspoon salt and let it rest for about 10 minutes to draw out excess moisture.
- Drain Zucchini: Use a clean kitchen towel to thoroughly drain the zucchini, squeezing out as much moisture as possible to prevent sogginess in the crust.
- Make Crust Mixture: In a mixing bowl, combine the drained zucchini with 2 large eggs, 1/2 cup grated Parmesan cheese, and 1 cup shredded mozzarella cheese (half of total). Mix well.
- Form Crust: Grease a 9×13-inch baking dish and press the zucchini mixture evenly into the bottom to form a crust.
- Bake Crust: Bake the crust in the preheated oven for about 20 minutes or until it is lightly browned and set.
- Cook Beef Mixture: In a skillet over medium heat, cook 1 pound ground beef and 1/2 cup chopped onion until browned, about 7-10 minutes. Drain any excess fat if needed.
- Add Vegetables and Seasoning: Stir in 2 cups pizza sauce, 1 chopped green bell pepper, 1/2 cup sliced mushrooms, 1/2 teaspoon dried oregano, 1/2 teaspoon garlic powder, and 1/4 teaspoon black pepper to the cooked beef. Mix well and cook for an additional 2-3 minutes to combine flavors.
- Assemble Casserole: Spread the beef and vegetable mixture evenly over the baked zucchini crust in the baking dish.
- Add Cheese Topping: Sprinkle the remaining 1 cup shredded mozzarella cheese and 1 cup shredded cheddar cheese evenly over the beef layer.
- Bake Casserole: Return the casserole to the oven and bake for another 20 minutes or until the cheese is melted, bubbly, and slightly golden.
- Cool and Serve: Allow the casserole to cool for a few minutes to set, then slice and serve warm for a comforting meal.
Notes
- Salting and draining the zucchini is essential to avoid a watery crust.
- You can substitute ground turkey or chicken for ground beef for a leaner option.
- For a vegetarian version, omit the beef and add more vegetables or use plant-based crumbles.
- Leftovers refrigerate well and can be reheated in the oven or microwave.
- Feel free to add more herbs like basil or red pepper flakes for extra flavor.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Main Course
- Method: Baking
- Cuisine: Italian-American
Keywords: Zucchini pizza casserole, low carb pizza, zucchini crust, baked casserole, healthy pizza alternative, ground beef casserole, easy dinner recipes

