These Cacio e Pepe Peas transform a bag of frozen green peas into a fast, flavorful side dish finished with Pecorino Romano and lots of freshly cracked black pepper. With just four main ingredients, they come together in about 10 minutes.

Easy Frozen Peas Recipe
I don’t usually get excited about a bowl of plain peas, unless they’re part of a soup or tucked into a main dish. Lately peas have been popping up everywhere on my feed, so I wanted to make a simple side that actually tastes great. Tossing frozen peas with the flavors of cacio e pepe—sharp Pecorino Romano, plenty of coarsely ground black pepper, and a bit of butter—was a revelation. The salty, nutty cheese and pepper balance the natural sweetness of the peas, and a splash of water helps the cheese form a silky coating. It’s a fast, reliable way to add fiber and plant-based protein to weeknight dinners or scaled-up holiday spreads.
Why This 10-Minute Pea Side Dish Works

I try to reach 25–30 grams of fiber each day, so I’m always on the lookout for easy ways to boost fiber in meals. These peas surprised me: butter, Pecorino, and black pepper transform a frozen bag into something I actually look forward to eating. They’re versatile, quick, and satisfying.
- Ready in 10 minutes: Frozen peas go straight from the bag to the skillet—no thawing.
- Only four main ingredients: Peas, butter, black pepper, and Pecorino, plus a little water to loosen the cheese.
- Protein and fiber: Green peas add plant protein, fiber, and useful vitamins and minerals to the plate.

Ingredients You’ll Need
Here’s everything you need for this quick frozen pea side dish. See the recipe card below for exact measurements.

- Frozen petite peas: I like petite for their tender texture, but regular frozen peas work fine. Use plain peas rather than ones in sauce.
- Salted butter: Helps the pepper bloom and gives the peas a glossy finish.
- Black pepper: Freshly cracked or coarsely ground so the pepper’s aroma and bite come through.
- Pecorino Romano: Finely grated so it mixes smoothly into a paste with water. Parmesan can be used for a milder result.
- Water: A small amount mixed with the cheese helps it emulsify and coat the peas evenly.
How to Make Cacio e Pepe Peas
This single-skillet side comes together in roughly 10 minutes. Below are the straightforward steps; a printable recipe card follows.



- Make the cheese mixture: Stir finely grated Pecorino and room-temperature water into a thick paste in a small bowl.
- Toast the pepper: Melt the butter in a large skillet over medium heat. Add the black pepper and stir about 30 seconds until fragrant.
- Cook the peas: Add the peas straight from the freezer and cook, stirring occasionally, until heated through, about 4–5 minutes. Let any excess water evaporate.
- Finish off the heat: Remove the skillet from the heat and wait 30 seconds. Toss in the Pecorino paste, adding another splash of water if needed to coat the peas evenly. Serve with extra black pepper and Pecorino to taste.

Tips for the Best Cheesy Peas
- Grate the cheese finely: A fine grate blends into a smooth paste and distributes more evenly.
- Keep the peas bright: Cook only until heated through; overcooking dulls their color and texture.
- Turn off the heat before adding the cheese: Residual heat is enough; a very hot pan can make Pecorino clump rather than coat.
- Taste before adding salt: Salted butter and Pecorino may provide enough seasoning on their own.
Variations
Make it a pasta dish: Toss these peas with warm orzo or short pasta for a quick pasta-and-peas meal. Add a splash of reserved pasta water to loosen the cheese coating, then finish with extra Pecorino and more black pepper.
What to Serve with Cacio e Pepe Peas
These peas pair exceptionally well with simply prepared chicken, pork, or fish. They’re easy enough for every night but also elegant enough for a holiday table. Try them with roasted or pan-seared chicken, pork chops with mustard-herb sauce, or a whole roasted chicken. For a light lunch, spoon the peas over toast spread with ricotta and finish with extra Pecorino and pepper.
Storage and Reheating
Store leftovers in an airtight container in the refrigerator for up to 4 days. For best texture, cook the peas with butter and pepper, then add the cheese paste after reheating each portion. Reheat gently in a skillet or microwave until hot, then finish off the heat with the Pecorino mixture and a splash of water to re-emulsify the sauce.
Note: Leftovers fully dressed with cheese can be reheated, but the cheese may not coat as smoothly a second time.

Cacio e Pepe Peas
A simple skillet dish: frozen peas tossed with butter, coarsely ground black pepper, and grated Pecorino Romano for a quick, flavorful side.
Yield: 4 servings
Serving size: 3/4 cup
Prep: 5 mins Cook: 5 mins Total: 10 mins
Ingredients
- 1 (16-ounce) bag frozen petite peas
- 1 tablespoon salted butter
- 3/4 teaspoon coarsely ground black pepper, plus more for serving
- 1/2 cup finely grated Pecorino Romano, plus more for serving if desired
- 2 tablespoons room-temperature water, plus more as needed
Instructions
- In a small bowl, stir the Pecorino and 2 tablespoons water into a thick paste.
- Melt the butter in a large skillet over medium heat. Add the black pepper and cook, stirring, about 30 seconds until fragrant.
- Add the frozen peas and cook, stirring occasionally, until heated through, about 4–5 minutes. Allow excess liquid to evaporate.
- Remove the skillet from the heat and let it sit for 30 seconds. Add the Pecorino paste and toss to coat the peas, adding another tablespoon of water if needed. Finish with extra Pecorino and more black pepper to taste.
Notes
If you like a lot of black pepper, feel free to add more. When reheating in a skillet, loosen the dish with a little water to help the cheese re-coat the peas.
Nutrition (per serving)
Calories: 154 • Protein: 8 g • Carbs: 15.5 g • Fat: 6.5 g • Fiber: 5 g
FAQ
No. Add the peas straight from the freezer to the skillet and cook just until heated through.
Yes. Parmesan will give a milder flavor; Pecorino Romano is tangier and more characteristic of cacio e pepe.
Yes. Taste after adding the cheese, then season with salt if needed.

More Easy Vegetable Sides
- Charred sugar snap peas with lemon and feta
- Roasted Parmesan green beans
- Air fryer green beans
- Pea salad
- Baked peas and rice