These oven-roasted Parmesan green beans are an easy, flavorful vegetable side that deserves a regular place in your weeknight rotation. Fresh green beans are roasted on a baking sheet until tender with crisp, golden edges, then finished with a generous coating of Parmesan that forms a savory, crisp crust.
Minimal prep and cleanup combine with big flavor, making this a perfect quick side for busy evenings. High oven heat transforms simple green beans into a cheesy, crunchy accompaniment that pairs well with nearly any main course. Once you try this method, you may never cook green beans another way.
This recipe requires just a few ingredients and comes together fast. Roast at high temperature to get tender beans with slightly charred edges and a golden Parmesan crust. It’s an excellent choice when you want a simple, crowd-pleasing vegetable side.
Ingredients
- Fresh green beans (about 32 ounces)
- Olive oil (2 tablespoons)
- Parmesan cheese, finely grated (½ cup)
- Onion powder (1 teaspoon)
- Garlic powder (1 teaspoon)
- Salt (1 teaspoon)
- Coarse ground black pepper (½ teaspoon)
Instructions
Preheat the oven to 425°F (220°C). Lightly oil a baking sheet or line it with parchment paper.
In a large bowl, combine the green beans, olive oil, grated Parmesan, onion powder, garlic powder, salt, and pepper. Toss until the beans are evenly coated.
Spread the green beans in a single layer on the prepared baking sheet so they roast rather than steam.
Bake for 15 minutes. Use a spatula to flip the beans, then continue roasting for another 10 minutes or until the beans are tender and the edges are crisp and golden. Test doneness by piercing a bean with a fork; it should be tender but still have some bite.
Remove from the oven and serve immediately so the Parmesan crust stays crisp.
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Oven Roasted Parmesan Green Beans
- Author: Elaine VanVleck
- Total Time: 30 minutes
- Yield: 6 servings
- Diet: Gluten Free
Description
Fresh green beans are roasted until tender and crisped at the edges, then coated in grated Parmesan for a crunchy, savory finish. This simple side is fast, flavorful, and kid-friendly.
Ingredients
- 32 ounces fresh green beans
- 2 Tbsp olive oil
- ½ cup finely grated Parmesan cheese
- 1 tsp onion powder
- 1 tsp garlic powder
- 1 tsp salt
- ½ tsp coarse ground black pepper
Instructions
1. Preheat oven to 425°F. Lightly oil a baking sheet or line it with parchment paper.
2. In a large bowl, toss green beans with olive oil, Parmesan, onion powder, garlic powder, salt, and pepper until evenly coated.
3. Arrange beans in a single layer on the baking sheet to ensure they roast and crisp.
4. Roast 15 minutes, flip with a spatula, then roast another 10 minutes until tender and crisp at the edges. Serve immediately.
- Prep Time: 5 minutes
- Cook Time: 25 minutes
- Category: Side Dish, Vegetables
- Method: Baking
- Cuisine: Gluten Free
Top Tip
You can substitute avocado oil if you prefer. Be sure to finely grate the Parmesan so it melts and crisps evenly on the green beans.
Frequently Asked Questions
Fresh green beans are recommended because they roast to a crisp texture and develop flavorful browned edges. Frozen beans release more moisture and are more likely to steam, which prevents browning and crispness.
Dry the beans thoroughly after washing and spread them in a single layer on the baking sheet. Overcrowding traps steam and results in softer, less crispy beans.
They’re best served straight from the oven when the Parmesan crust is crisp. You can trim and prep the beans ahead and store them in the fridge until ready to roast. Leftovers keep in an airtight container for up to three days and reheat well in the oven or air fryer to restore some crispness.
