Pesto vs Chimichurri: Two Different Green Sauces Compared

If you’ve stood in the grocery store wondering whether pesto (genovese) and chimichurri (argentinian) are basically the same thing, you’re not alone. They look similar in a recipe but they’re not the same, and using one when you should use the other will change the dish. Here’s what I have learned cooking with both for years.

Quick Answer

Both are amazing herb sauces. Pesto is rich and Italian, made for pasta and bread. Chimichurri is sharp and South American, made for grilled meat. They serve very different dishes.

What Is Pesto (Genovese)?

Composition: Basil + pine nuts + parmesan + garlic + olive oil

Best uses: Pasta, pizza, sandwich spread, marinade, gnocchi sauce

Pros:

• Creamy from the cheese
• Rich and nutty
• Works hot or cold

Cons:

• Cannot be used on dairy-free dishes
• Pine nuts are expensive
• Browns quickly when exposed to air

What Is Chimichurri (Argentinian)?

Composition: Parsley + garlic + red wine vinegar + olive oil + oregano + red pepper flakes

Best uses: Grilled steak, chicken, vegetables, marinade for meats

Pros:

• No cheese, no nuts – allergy-friendly and vegan
• Bright, acidic
• Cuts through rich grilled meats

Cons:

• Less creamy mouth feel
• Not ideal for pasta on its own

Can You Substitute One for the Other?

Using Chimichurri (Argentinian) instead of Pesto (Genovese)

Don’t substitute pesto for chimichurri on grilled steak – the cheese and pine nuts feel wrong. Use a parsley-based pesto without cheese if needed.

Using Pesto (Genovese) instead of Chimichurri (Argentinian)

Don’t use chimichurri on pasta the same way as pesto. Too sharp. Add cream and cheese to soften it first.

My Honest Take

Both are amazing herb sauces. Pesto is rich and Italian, made for pasta and bread. Chimichurri is sharp and South American, made for grilled meat. They serve very different dishes. Both have their place. Knowing the difference is what separates a frustrated cook from a confident one.

Frequently Asked Questions

Are pesto (genovese) and chimichurri (argentinian) interchangeable?

Sometimes yes, sometimes no. For most casual recipes you can swap them with the adjustments above. For dishes where the specific ingredient matters (authentic Italian, traditional French), you really should use what the recipe calls for.

Which one is healthier?

Depends on the metric. Lower-fat options are lower calorie. Higher-fat options often have more flavor for the same calorie cost. Either fits in a balanced diet.

Which one tastes better?

Personal preference. I keep both in my kitchen because they serve different dishes. The right one depends on what you’re cooking.

Which is cheaper?

Generally, the more refined or specialty version (the one closer to a single regional cuisine) is more expensive. The everyday workhorse is cheaper.

Can I store them the same way?

Mostly yes, but check the label. Both should be refrigerated after opening if they’re perishable. Dry ingredients can stay in the pantry.