Parmesan Roasted Green Beans: Easy Oven Baked Side Dish (Fresh or Frozen Beans)

These parmesan roasted green beans are crispy, savory, and so good that even the pickiest eaters will ask for seconds. The oven turns simple green beans into a golden side dish with tender centers, caramelized edges, and a salty parmesan crust in every bite. You can use fresh or frozen green beans, which makes this easy recipe perfect for busy weeknights and big holiday dinners alike. If you're looking for a vegetable side dish that feels special enough for Thanksgiving, Christmas, and Easter but simple enough for any night of the week, these baked parmesan green beans are it.

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Why this is the best Parmesan Roasted Green Beans recipe

It's a simple recipe. These parmesan roasted green beans use basic ingredients like green beans, Parmesan cheese, olive oil, and seasonings. You probably already have most of what you need in your kitchen, and there's nothing complicated about putting everything together.

You can use fresh or frozen green beans. Fresh green beans roast up tender with lightly browned edges, but frozen green beans work well when you need a quick vegetable side dish. It's an easy way to use what you already have without making another trip to the grocery store.

The Parmesan cheese makes them taste amazing. Roasting brings out the natural flavor of the green beans, while the Parmesan adds a salty, cheesy coating that browns beautifully in the oven. Even picky eaters are willing to give their vegetables another chance when cheese is involved.

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Parmesan roasted green beans is an easy side dish for almost any meal. These oven baked green beans go with chicken, pork chops, steak, fish, or just about anything else you're making for dinner. They're simple enough for busy weeknights but also make a delicious addition to Thanksgiving, Christmas, Easter, or Sunday dinner.

Cleanup is quick and easy. Everything cooks on a single baking sheet, so you don't have to worry about extra pots and pans. While the green beans roast in the oven, you can concentrate on getting the rest of dinner ready.

What you'll need to make the best Parmesan Roasted Green Beans

Equipment

• Baking sheet
• Parchment paper

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See the printable recipe card at the bottom of the page for all measurements and nutritional information.

Ingredients

• Green beans - Fresh or frozen would work well, but I would not recommend canned beans. If they're fresh, you'll want to trim them.
• Olive oil
• Salt to taste
• Black pepper to taste
• Parmesan cheese - You want real cheese here. You can get "grated Parmesan" in the grocery store, usually in the refrigerated cheese area. You don't want any shelf-stable "cheese" in a can as that won't melt.
• Red pepper flakes - These are optional but make the beans taste really good.

How to make easy Parmesan Roasted Green Beans

1. Preheat the oven to 425ºF and line a baking sheet with parchment paper.
2. Toss the green beans with olive oil, salt, pepper, and red pepper flakes.
3. Spread beans on a baking sheet in a single layer. Roast 12 minutes.
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   Stir and flip, then bake 6-8 minutes more until crisp-tender and browned at the edges.
4. Remove the baking sheet from the oven. Sprinkle Parmesan over the hot beans and toss well. Return to oven and roast 1-2 minutes more, just enough for the cheese to melt.
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5. Remove from oven and add more salt and pepper if desired.
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Substitutions & variations

You can make these Parmesan roasted green beans with fresh or frozen green beans. Fresh beans will have a firmer texture and develop more browned edges, while frozen beans tend to be a little softer. If you're using unthawed frozen green beans, you may also need to adjust the baking time.

If you don't have olive oil, avocado oil or melted butter will work instead. Olive oil gives the green beans a light flavor and helps them brown, while butter adds a little extra richness.

For a different cheesy flavor, try grated Pecorino Romano or Asiago cheese. Both are delicious, although Pecorino Romano tends to be saltier than Parmesan, so you may want to cut back on the salt in the beginning if that's what you have.

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For extra garlic flavor, add a little garlic powder or a few cloves of minced fresh garlic. If you're using fresh garlic, add it toward the end of roasting so it doesn't burn. Onion powder, Italian seasoning, ranch seasoning, or a pinch of smoked paprika are also delicious additions.

If you like extra heat, sprinkle the green beans with a pinch of cayenne pepper before roasting. For a brighter flavor, squeeze fresh lemon juice over the roasted green beans just before serving. A little lemon zest is delicious with the Parmesan cheese, too.

For an extra crunchy topping, sprinkle a few tablespoons of seasoned panko breadcrumbs over the green beans before baking. You can also add crumbled cooked bacon or toasted sliced almonds just before serving for additional flavor and texture.

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Storing leftover Parmesan Roasted Green Beans

Refrigerate leftovers in an airtight container for up to 3 to 4 days.

Reheat in the oven or air fryer to bring back the crispy edges. The microwave will work but they will be softer.

Freezing cooked leftovers isn't recommended, since the beans turn soft and lose their crispy texture.

Prep ahead for holiday meals by trimming fresh green beans up to 2 days early and storing them in the fridge, then roast right before serving.

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Check out more delicious vegetable side dish recipes

• Garlic Parmesan Roasted Carrots
• Lemon Zucchini Noodles with Garlic & Parmesan
• Garlic Roasted Asparagus with Parmesan Cheese
• Garlic Parmesan Roasted Carrots
• Oven Roasted Red Beets with Balsamic Glaze and Feta Cheese

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