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Deep-dish pizza casserole (Thick & Cheesy!)

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This deep-dish pizza casserole reminds me of going to Pizza Hut as a child. I read so many books to get those “Book it” rewards. Full of beef, pizza sauce, mushrooms, peppers and more- this recipe is simply delicious!

low carb casserole pizza in cast iron skillet

I love Italian deep-dish pizzas, straight from the oven in a large cast-iron skillet; they’re the ultimate comfort food.

I’m not a huge fan of most keto cauliflower or chicken-crust pizzas. However, I love my pizza flavored cauliflower and spaghetti squash pizza nests.

A few years back, while in Chicago, I got my pregnant hands on one of the city’s famous deep-dish pizzas (back in my carb-crazy days). This recipe was inspired by Giordanos.

Now, I’m watching what I eat, but I still love and crave a deep-dish pizza. So, I created this monster of an easy keto pizza casserole.

How do I make the perfect deep-dish keto pizza?

I made my pizza casserole in a cast-iron skillet for a bit more flavor. My favorite is the Lodge brand skillets.

However, you can make this recipe without a cast-iron skillet; just use a deep casserole dish instead.

Notice I didn’t use pizza sauce in this recipe. Instead, I used spaghetti sauce, which I think has more of a rich taste for casseroles than pizza sauce.

Tips for cooking your deep-dish pizza casserole:

To save on time, I added in my chopped onion and green pepper while browning the ground beef. Now, they’re soft and savory from the oven later on.

I added in some favorite pizza toppings. However, you may wish to substitute any meats, cheeses, and veggies as long as they’re low-carb or keto friendly.

close up of deep dish pizza with green peppers mushrooms cheese

How do I make pizza casserole keto friendly?

Unlike other keto pizzas, this pizza casserole does not use an almond flour, cauliflower, or pizza crust.

Only the delicious toppings, sauce and cheese for this crustless low carb pizza!

To make this more keto friendly, you can omit the onions and add in more peppers, olives, or mushrooms.

Extra meat is also a great way to beef up your deep-dish casserole.

baked crustless keto low carb pizza

Can I make other substitutions for a keto pizza?

  • bbq sauce, chicken and onions instead of pizza sauce/ground beef
  • meat lover’s pizza with ham, Italian sausage, and beef
  • Philly cheesesteak pizza with steak, peppers, onion, and white American cheese
peppers cheese and mushrooms with melted mozzarella cheese

A few ideas if you love a variety of pies:

deep dish pizza casserole

Deep-dish pizza casserole (keto)

Deep-dish pizza casserole (keto and low carb). A supreme, loaded cheesy pie with all the deliciousness and low carbs. An easy, one-pan dinner idea.
4.45 from 36 votes
Print Pin Rate
Course: Main Course
Cuisine: Italian
Prep Time: 7 minutes
Cook Time: 20 minutes
Total Time: 27 minutes
Servings: 4
Calories: 283kcal
Author: Amber @ Low Carb Quick


  • 1 lb lean ground beef
  • 1/2 cup shredded mozzarella cheese
  • 1/3 cup green olives
  • 12 slices pepperoni
  • 1 green bell pepper
  • 1 yellow onion
  • 3 tbsp pickled jalapeños
  • 8 oz baby bella mushrooms
  • 1.5 cup low carb spaghetti sauce


  • Preheat oven to 350ºF.
  • Meanwhile, on med-high heat, brown ground beef with onions and green peppers. Drain any excess juice.
  • Add low-carb pizza sauce, pepperoni, green olives, mushrooms and jalapeños. Top with mozzarella cheese.
  • Bake for 10-12 minutes, until cheese is golden.


Calories: 283kcal | Carbohydrates: 8g | Protein: 37.7g | Fat: 9.3g | Saturated Fat: 3.1g | Cholesterol: 103mg | Sodium: 613mg | Fiber: 1.8g

If you like this keto deep-dish pizza casserole, you’ll love:


Saturday 27th of August 2022

Great recipe. Can't wait to try it. And I love Giordanos in Chicago!

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