Easy Roasted Green Beans

These roasted green beans are loaded with flavor and are simple to make! Tossed in olive oil and balsamic vinegar, these beans are roasted to perfection and topped with freshly grated Parmesan cheese. It's the perfect side dish for any dinner or holiday meal!

Jump to:

• ✔️ Quick Recipe Overview
• ℹ️ Why This Recipe Works
• 🛒 Ingredients You'll Need
• 🔪 How to Make Roasted Green Beans
• 📋 Variations and Substitutions
• 🙋 Frequently Asked Question
• 💭 Expert Tips
• 🥘 More Green Bean Recipes You'll Love!
• Easy Roasted Green Beans

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These roasted green beans are simple to make and are absolutely delicious! They are the perfect combination of both crispy and tender, combined with fresh sliced mushrooms coated in olive oil and balsamic vinegar, and then topped off with freshly grated Parmesan cheese. It doesn't get more simple than that! Learning how to make roasted green beans has never been so easy. It’s a quick, simple, no-fuss recipe that is easy enough for anyone to make. And, it's the perfect side dish that pairs well with baked salmon, grilled steak, or this oven baked brown sugar chicken with garlic! Or, serve these as the perfect side dish at your Thanksgiving and Christmas dinner table!

Green beans are so versatile and can be made so many different ways. While I do love grilled green beans, roasting is one of my favorite ways to prepare them. When making roasted green beans in the oven, they develop a whole new delicious depth of flavor. And the balsamic marinated mushrooms add a pop of flavor and adds a nice tangy finish.

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🛒 Ingredients You'll Need

How you season roasted green beans makes all the difference when it comes to flavor. And keeping it simple is key. The ingredients used in this recipe are simple, yet provide so much flavor that compliments just about any main dish. All you need are 5 ingredients to make this recipe and all of them can easily be found at your local grocery store. And, they are budget friendly!

• fresh green beans (also called string beans)
• fresh sliced mushrooms
• fresh grated Parmesan cheese
• olive oil
• balsamic vinegar

Using beans that are bright green and firm in texture is a must when making roasted green beans in the oven. If you use a canned version, they will turn out mushy. Frozen beans become soggy due to the moisture they hold during the freezing process.

Oil and vinegar always pair exceptionally well together. Olive oil is not only healthy, but stands up well with high heat. The balsamic vinegar helps to slightly marinates the mushrooms, which adds flavor to this recipe.

It's important to use freshly grated Parmesan cheese. For the freshest, most robust flavor, grate your own cheese from a block of Parmigiano Reggiano Parmesan Cheese. It provides a slight salty taste and has a subtle nutty flavor. If in a hurry, use a bag of grated Parmesan cheese. Stay away from the canned and powdered Parmesan cheese.

🔪 How to Make Roasted Green Beans

Start by preheating the oven to 450°F. Roasting requires a higher temperature, anything over 400°F. And to obtain that al dente and crispy tender texture, the oven temperature needs to be high.

While the oven is preheating, trim the tips off the fresh beans. Then, using a sharp knife cut the string beans 2 to 3 times so you have bite-size pieces. Place the cut beans in a colander. If you're not using pre-sliced mushrooms, use a sharp knife to slice them about ¼ of an inch thick.

Next, rinse the vegetables in a colander. Layer paper towels on a counter and pour the beans and mushrooms onto the paper towels. Using another paper towel, gently pat to remove any excess water.

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Place the vegetables in a gallon sized plastic bag along with the olive oil and balsamic vinegar. Seal the bag and shake well.

In a 9x13 oven safe dish, add the green bean mixture and spread evenly.

Roast in the oven uncovered for 40-45 minutes. Once done, remove the dish and top with the freshly grated Parmesan cheese.

And that's all it takes to make the most delicious roasted green beans made in the oven! Slight crispy and oh so flavorful, these roasted beans are an easy side dish and are incredibly simple to make. The flavors are absolutely delicious!

📋 Variations and Substitutions

This is a versatile side dish and tastes amazing with some simple additions! While this is a tried and true recipe, I've also had success by adding the following:

• fresh squeezed lemon juice after they have been roasted
• top with freshly chopped basil, parsley, chives, or mint
• to add a bit of heat, add in a teaspoon of red pepper flakes right before placing the dish into the oven
• after removing the dish from the oven, top with 2-3 slices of salted butter and then stir to coat
• top with sliced almonds

🙋 Frequently Asked Question

💭 Expert Tips

• To save even more time, be on the lookout for bags of green beans that have already been trimmed. These can sometimes be found in the produce section at your local grocery store.
• You can use french style string beans if you want. To make this version, simply cut the tips off in a diagonal direction. Then, slice the beans lengthwise and cut into bite-size pieces. Needa visual? Check out this video: How to Cut French Style Green Beans
• Make these ahead of time by letting all the ingredients marinate overnight in the plastic bag. After all the ingredients have been added to the plastic bag, seal and place in the refrigerator. The flavor is amazing when you let the ingredients marinate overnight in the balsamic vinegar and olive oil.
• For even more flavor, use a flavored olive oil and balsamic vinegar. Garlic infused olive oil with a raspberry balsamic vinaigrette is my favorite taste combination!
• To add even more crunch, roast these in the oven for 30 minutes instead of 45 minutes.
• Store any leftovers in a container with a lid in the refrigerator for 3-4 days. Reheat in the microwave or in the oven.

🥘 More Green Bean Recipes You'll Love!

There are so many ways to make green beans! I love adding them to these oven roasted vegetables! Not only do they add flavor, but the texture and crunch is just lovely with every bite. And if you're someone who loves to make food on the smoker, then these hickory smoked green beans with bacon are a big crowd pleaser. Sit back and let the smoker do all the work! I've also been known to add string beans to sheet pan meals like I do in this Sheet Pan Smoked Sausage and Vegetables. The added crunch and flavor is so enjoyable!

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Update Notes: This post was originally published in May 2012, but was re-published with updated step-by-step instructions, pictures, and tips in November 2022.