Try my frozen roasted green beans for the tastiest veggie side to pair with any meal. Super easy, minimal prep, and affordable!

I'm back with another frozen veggie recipe, showing you my best tricks for a nutritious, affordable staple. In case you didn't already know, frozen vegetables are just as nutritious as fresh. They are a GREAT option for coping with food inflation right now. Here are some other reasons I love cooking with frozen veggies:
- Cost-effective
- Convenient and easy
- Minimal prep
- Enjoy out-of-season produce
- Nutritious
I've already covered frozen broccoli and frozen cauliflower, so check those out if you haven't already. Today we're making frozen roasted green beans!
This recipe is for everyone who wants an oven recipe instead of air fryer (don't worry, if you want to air fry frozen green beans, I have instructions for that too!). These frozen roasted green beans are cheesy, garlicky, and a have a little spicy kick. The best combo to jazz up any veggie!
Make these as an easy side for lunch and dinner, and I promise no one will even think that they came out of your freezer. Even the veggie-hater at your table will be asking for seconds.
Ingredients
- Frozen whole green beans
- Olive oil
- Salt and pepper
- Garlic cloves
- Onion powder
- Red pepper flakes
- Shredded parmesan cheese
Instructions
Preheat oven to 450 F and line a baking pan with parchment paper.
In a large bowl, toss frozen green beans with oil, garlic and seasonings (except the parmesan).
Once fully coated, place the beans in a single layer on a baking sheet. Bake for 15 minutes, shake the pan, sprinkle with parmesan.
Bake for another 15 minutes. Enjoy!
Substitutions and Variations
To make vegan: Use nutritional yeast instead of parmesan.
I like adding red pepper flakes for a touch of spice, but you can always omit these if you're not a fan. With veggies, I always recommend seasoning to your preferences, so switch up things according to your taste buds!
Equipment
- Oven or air fryer
- Baking sheet
- Mixing bowl
Storage
These frozen roasted green beans can be stored in an airtight frozen container in the fridge for around 3 days.
Top Tip
For extra crispy green beans, I recommend broiling for 3 minutes before serving! As always, make sure you keep an eye while broiling to prevent burning.
Frequently Asked Questions
Yes, you know I love the air fryer! To air fry frozen green beans, I cook them at 390F for 12 minutes, shaking halfway (adding the cheese in the last 5 minutes). For best results, you may need to make them in batches as I find they cook the best when spread in an even layer in the basket of the air fryer. This allows the air to circulate, resulting in the best firm and crispy texture.
The parmesan cheese will burn if cooked at 450 for the entire time, so I like adding it towards the end so it gets nice and golden without burning!
Nutritional yeast is made from an inactive yeast- it has a nutty, cheesy flavour that makes it an amazing vegan option. It's also a great way to add more B12 and protein to your diet. Parmesan is a dairy product, so not vegan-friendly. However, parmesan is a lactose-free cheese, making it great for anyone with lactose intolerance! I personally like doing half parmesan cheese and nutritional yeast.
Anything! Pair them with a protein source and carbohydrate for the perfect balanced meal OR eat them alone for a crispy snack! For proteins, I like pairing them with turkey meatballs or sesame chicken. Let me know what combos you've been liking!
I would recommend cooking them straight from frozen for the best results. It's super simple, no extra steps required!
More Easy Veggie Recipes
I'm determined to show everyone that veggies (frozen or fresh) are super tasty if you cook them right. These are some of my go-to recipes:
- Air Fryer Balsamic Brussel Sprouts
- Air Fryer Butternut Squash
- Air Fryer Kale Chips
- Lemon and Parmesan Air Fryer Zucchini Sticks
PS. I love seeing my recipes in action! If you decide to make these frozen roasted green beans, don't forget to snap a photo and tag me on Instagram- @nourishedbynic or leave a comment and rating below letting me know how you liked it!
📖 Recipe
Cheesy Garlic Frozen Roasted Green Beans
Ingredients
- 1 bag frozen whole green beans 750g
- 2.5 tablespoon olive oil
- ½ teaspoon salt
- ½ teaspoon black pepper
- 2 cloves garlic
- ¾ teaspoon onion powder
- ½ teaspoon red pepper flakes
- ⅓ cup shredded parmesan cheese or nutritional yeast
Instructions
- Preheat oven to 450 F and line a baking pan with parchment paper.
- In a large bowl, toss frozen green beans with oil, garlic and seasonings (except the parmesan).
- Once fully coated, place the beans in a single layer on a baking sheet. Bake for 15 minutes, shake the pan, sprinkle with parmesan and and bake for another 15 minutes.
- For extra crispy green beans, broil for 3 minutes before serving!
Glenda Harding
Wow, these are incredible! Thank you for the recipe, I'll be making these all the time, great snack!!