Instant Pot Frozen Chimichurri Chicken

Dinner’s Ready in a Flash

Some nights, the last thing you want to do is hover over the stove or wait for chicken to thaw. I have been there. It is 5:30, you are starving, and you realize the only thing in the fridge is a lonely jar of pickles and half a lemon. That is exactly why this Instant Pot Frozen Chimichurri Chicken has become one of my weeknight heroes.

The best part about this recipe is that it goes straight from freezer to table in under 30 minutes. There is no thawing required, no advance planning needed. Just pull the chicken from the freezer, dump everything into the pot, and let the Instant Pot work its magic. By the time you have set the table or poured yourself a drink, dinner is essentially done.

The chimichurri brings that fresh, herby, garlicky punch that makes everything taste bright and exciting. Made with fresh parsley, oregano, garlic, and a tangy kick from vinegar, chimichurri is one of those sauces that transforms simple proteins into something memorable. When it cooks down in the pressure cooker with the chicken, every bite becomes infused with that vibrant flavor.

I love making a big batch when I am short on time but still want something that feels fresh and interesting. And because it is freezer-friendly, I can prep several packs ahead of time during meal prep Sunday and feel like a dinner wizard when I pull one out mid-week. No stress, no mess. Just juicy, herbaceous chicken that works for tacos, salads, bowls, or a simple plate with rice and veggies.

What Makes This Recipe Work

The Instant Pot is uniquely suited for frozen chicken because the pressure cooking actually works better with frozen or partially frozen meat. The high pressure forces liquid and flavor into the chicken rather than just steaming it from the outside. The result is chicken that shreds easily and tastes like it has been braising for hours.

The chimichurri does double duty here. It adds layers of flavor while also providing liquid for the pressure cooker to work with. You do not need much extra broth because the sauce itself has plenty of moisture from the vinegar and herbs. If you are using a thicker, more oil-based chimichurri, you might want to add a splash more liquid to make sure the pot can come to pressure properly.

One thing to note: not all chimichurri sauces are created equal. Some are more herb-heavy, others are more acidic. If you are using store-bought, give it a taste before adding it to the pot. You might want to adjust the seasoning accordingly. A homemade chimichurri is wonderful here if you have it, but a good quality store-bought version works perfectly fine for a weeknight shortcut.

How to Serve It

This chicken is incredibly versatile. Shred it up for tacos with some pickled onions and avocado. Serve it over a bed of fluffy white rice with the extra sauce drizzled on top. Toss it into a salad with some crunchy vegetables and a tangy vinaigrette. Or keep it simple and serve it alongside some roasted potatoes and a bright green vegetable.

The leftovers (if there are any) store beautifully in the refrigerator for up to four days. The chicken actually gets more flavorful as it sits, and the sauce thickens up nicely. Use it for meal prep bowls throughout the week.

Tips for Success

If your chicken pieces are frozen together in one solid block, run the package under warm water for about 30 seconds. This makes them easier to separate and allows them to fit in a single layer in the pot.

Do not skip the natural pressure release. While it is tempting to do a quick release to speed things up, letting the chicken rest in the residual heat for those extra minutes makes a noticeable difference in tenderness. The chicken continues to cook slightly during this time, and the flavors have a chance to fully develop.

For the best texture, shred the chicken rather than leaving it whole. Two forks make this easy. The shredded pieces absorb more of the sauce and create those saucy, herbaceous bites that are incredibly satisfying.

Variations and Upgrades

Want to make this your own? Try these add-ins and substitutions.

Use chicken broth instead of water for a richer flavor base that carries through to the final dish. Add a splash of pineapple juice or apple cider vinegar for a sweet-tangy twist that brightens everything up. Once cooked, thicken the leftover sauce with a cornstarch slurry if you want something more like a glaze.

For a spicier version, add extra red pepper flakes or a diced fresh jalapeño before cooking. Top with crumbled feta and extra fresh herbs for a Mediterranean twist. You could also serve it with a side of chimichurri-dressed roasted potatoes or a bright tomato and cucumber salad.

Perfect For

This recipe is a lifesaver on busy weeknights when you completely forgot to defrost anything for dinner. It is also fantastic for meal prep Sundays when you want to get several portions ready for the week ahead. And if you have last-minute guests, this tastes like you put in way more effort than you actually did, which makes it a winner in my book.

If you are looking for more easy chicken recipes to keep in your back pocket, this Instant Pot Frozen Chimichurri Chicken is a great one to start with. It proves that weeknight dinners do not have to be boring or complicated to be delicious.

What You Will Need

• 1½ pounds frozen chicken breasts or thighs
• 1 cup chimichurri sauce
• 1 cup chicken broth or water
• 1 tablespoon olive oil
• 1 teaspoon garlic powder
• 1 teaspoon dried oregano
• ½ teaspoon salt
• ¼ teaspoon black pepper
• Pinch of red pepper flakes (optional)

Optional Garnishes

• Extra fresh parsley
• Crumbled feta or queso fresco
• Lemon wedges
• Diced avocado

How to Make It

1. Place the frozen chicken into the Instant Pot in a single layer, breaking apart any pieces that are frozen together.
2. Pour the chimichurri sauce and chicken broth over the chicken. Add the olive oil, garlic powder, dried oregano, salt, pepper, and red pepper flakes if using.
3. Lock the lid on the Instant Pot and make sure the valve is set to Sealing. Select Pressure Cook on High Pressure and set the cook time to 12 minutes.
4. Let the Instant Pot come to full pressure, then allow the cooking time to complete.
5. When the cooking time is complete, allow the pressure to release naturally for 8-10 minutes.
6. After the natural release, carefully switch the valve to Venting to release any remaining pressure. Open the lid once the pin drops.
7. Check that the chicken has reached an internal temperature of at least 165°F.
8. For a thicker sauce, remove the chicken and shred it. Switch the Instant Pot to Sauté and simmer the remaining liquid for 3-5 minutes. Return the shredded chicken and toss to coat.
9. Serve over rice, in tacos, or alongside roasted vegetables. Garnish with extra fresh parsley and a squeeze of lemon if desired.

Tips and Tricks

• Run the package under warm water for 30 seconds if the chicken pieces are frozen together in a solid block.
• Do not skip the natural pressure release - it makes the chicken more tender and flavorful.
• Use the leftover sauce to season rice, roasted potatoes, or steamed vegetables.
• Add extra red pepper flakes before cooking if you want it spicier.
• Keep extra chimichurri chicken packs in the freezer so you always have a quick dinner ready.
• Pair with roasted potatoes or a quick salad to round out the meal in minutes.