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• What Is Leftover Cauliflower Rice Pizza Crust?
• Tips for Cooking and Prepping
• Recipe Variations and Substitutes
• Serving Suggestions
• Storing, Make-Ahead, and Freezing Tips
• FAQs
• Leftover Cauliflower Rice Mushroom Skillet Recipe

If you’ve ever found yourself staring at a bowl of leftover cauliflower rice wondering what to do with it, this recipe is about to become your new go-to. It transforms into a savory, cheesy mushroom skillet that’s hearty enough to eat on its own, yet versatile enough to press into a pan and use as a clever low-carb pizza crust base.

What Is Leftover Cauliflower Rice Pizza Crust?

This dish starts as a simple cauliflower rice and mushroom skillet, seasoned with garlic, onion, Parmesan, mozzarella, and fresh parsley. It’s cooked down until tender and savory, creating a mixture that’s rich in flavor but light on carbs.

While it’s delicious served warm as a side dish alongside chicken, this same mixture is also the foundation many home cooks use to create a quick cauliflower pizza crust. Once cooled slightly and pressed into a baking sheet or pan, it firms up thanks to the melted cheese, giving you a sturdy, flavorful base you can top however you like.

Tips for Cooking and Prepping

#1: Rice the cauliflower in small batches

Overcrowding the food processor turns cauliflower into mush instead of coarse rice, so work in 3-4 batches for the best texture.

#2: Get a good sear on the mushrooms

Let the mushrooms sit undisturbed for a few minutes at a time so they turn golden brown instead of steaming, which builds deeper flavor.

#3: Don’t skip covering the skillet

Covering the pan while the cauliflower rice cooks with the broth helps it steam evenly and prevents it from drying out or scorching.

#4: Drain excess moisture before using as a crust

If you plan to press this mixture into a pizza crust, squeeze out any extra liquid first so your crust holds together instead of turning soggy.

#5: Add cheese off the heat

Stirring in the Parmesan and mozzarella after turning off the heat keeps the cheese creamy and melty rather than greasy or overcooked.

Recipe Variations and Substitutes

Swap the chicken broth for vegetable broth to make this vegetarian, or use white button mushrooms if brown mushrooms aren’t available. You can also stir in a pinch of red pepper flakes or Italian seasoning for a different flavor profile, or use pre-riced cauliflower from the store to save prep time.

Serving Suggestions

This savory skillet pairs beautifully with almond-crusted chicken or baked chicken thighs for a simple weeknight dinner. For a fun twist, press the mixture into a greased pan, bake until firm, then top with sauce, extra cheese, and your favorite toppings for a homemade cauliflower pizza crust.

Storing, Make-Ahead, and Freezing Tips

Leftovers keep well in an airtight container in the fridge for up to 4 days, making this a great meal-prep option. To freeze, cool completely and store in a freezer-safe bag for up to 2 months, then thaw overnight in the fridge before reheating or using it as a pizza crust base.

FAQs

Can I use frozen cauliflower rice instead of fresh?

Yes, just be sure to thaw and drain it well first since frozen cauliflower rice releases more moisture during cooking.

How do I turn this into a pizza crust?

Spread the cooked mixture into a thin, even layer on a lined baking sheet and bake until firm and lightly golden before adding your toppings and baking again.

Is this recipe low carb and keto-friendly?

Yes, this dish is naturally low in carbs thanks to the cauliflower base, making it a great option for keto or low-carb eating plans.

Can I make this dairy-free?

You can omit the Parmesan and mozzarella or substitute your favorite dairy-free cheese alternatives, though the texture may be slightly less firm.

What can I use instead of a food processor to rice the cauliflower?

A box grater works well if you don’t have a food processor, though it takes a bit more time and effort to get a similar rice-like texture.

Leftover Cauliflower Rice Mushroom Skillet Recipe

Prep time: 12 min | Cook time: 12 min | Total time: 24 min | Servings: 6

Ingredients

• 2 lbs cauliflower (1 small head of cauliflower, cut into large florets)
• 1.5 lbs brown mushrooms, sliced
• 1 tsp avocado oil
• 1 small onion, finely chopped
• 1 large garlic clove, minced
• 1/2 cup low sodium chicken broth
• 1/2 tsp salt
• Ground black pepper, to taste
• 1/4 cup grated Parmesan cheese
• 1/4 cup shredded mozzarella cheese
• 3 tbsp finely chopped parsley

Instructions

1. In a food processor, add cauliflower florets in 3-4 batches and process until a coarse ‘rice’ forms. Avoid overcrowding the bowl so the texture stays even. Transfer to a medium bowl and set aside.
2. Preheat a large non-stick skillet over medium-high heat and add the mushrooms. Cook for about 5 minutes, stirring occasionally, until golden brown. Transfer to a medium bowl and set aside.
3. Return the skillet to medium heat and swirl in the avocado oil to coat. Add the onion and garlic, sautéing for about 3 minutes, stirring occasionally, until translucent.
4. Add the cooked mushrooms, cauliflower rice, chicken broth, salt, and pepper. Stir to combine, cover, and cook for 4 minutes.
5. Turn off the heat and stir in the Parmesan, mozzarella, and parsley until the cheese is melted and everything is well combined.
6. Serve warm alongside your favorite chicken, such as almond-crusted chicken or baked chicken thighs, or use as a base for a low-carb pizza crust.

For a pizza crust version, spread the finished mixture thinly on a parchment-lined baking sheet and bake at 425°F for 10-15 minutes until firm before adding toppings.