Roasting Frozen Vegetables in Oven

Roasting frozen vegetables in oven at 425 is easy. If you don’t have fresh produce, you can cook mixed veggies frozen to tender this way. From frozen peas and carrots, to corn, green beans and more we will show you how to make them perfect on a sheet pan.

Previously we have shared air fryer frozen vegetables, in your pressure cooker, and of course boiling is the old fashioned method. I don’t like the latter because hot water just sucks all the nutritional value out of your food. Since these were frozen from fresh the vitamins are still in tact so roasting is the best way to go about it.

How to Roast Frozen Vegetables at 425

Mixed carrots, green beans, peas and corn kernels is the mixture that is the most common. You could use just one of the following this same way. Of course carrots will be firmer than the others but give or take a few minutes the instructions would remain the same.

What temperature do you cook frozen vegetables?

Ideally you want a high heat like 400F – 425 degrees. Higher will quickly defrost, cook, and lightly brown veggies on your sheet pan. Any lower you will need to cook longer and the texture won’t be as good. It will soften slowly which will make the outcome a bit mushier.

Should you defrost frozen vegetables before cooking them?

Do you need to defrost them first? Nope! You actually don’t want to, ever. Frozen foods are meant to be cooked straight out of the package. Just like baking frozen pizza it actually will turn out to be a really weird texture if you thaw it first.

I will say that fresh veggies will crisp much better. Compared to our dried edamame in oven soy beans you can really see the difference. You could get it closer with a spray of olive oil and turning it to broil for a minute would help but that is the biggest difference between the two.

Roasted Frozen Vegetables in Oven

All you need is a baking sheet and I like using a piece of parchment paper on the bottom for easier clean up. Nice thing about this method is you can read how to bake frozen chicken wings and cook at the same time. They’ll be ready around the same time. Served together is a cheap but pretty nutritious meal!

Ingredients

• 32 ounces bag of frozen vegetables, mixed were used here
  • about the max that will fit in a single layer on a sheet pan
• 3 tbsp olive oil will keep them moist
• Garlic powder or any other seasonings you want
• Salt and pepper to taste

You could cook a single variety too, other than broccoli that would take less time. But if you just wanted to use a bag of frozen cauliflower that would work the same way too. It just needs to be bite sized and firmer varieties.

Roasted Frozen Green Beans

If you don’t want them mixed and you just want the one to make your favorite Thanksgiving side dish this is how to cook frozen green beans a few different ways, and baked.

You could do the same thing with a bit firmer produce like we did with our air fryer frozen cauliflower but that will take a bit longer to get perfectly tender.

For a leafy variety, this is how to cook frozen spinach until tender but not drying it out. That one is a bit trickier since you don’t really want to crisp it at all. You’d either butter it or throw it into a crustless quiche with eggs for a brunch item.

How to Roast Frozen Vegetables without Getting Soggy

• Don’t forget to preheat the oven to 425 degrees F. first before adding your food.
• Toss your frozen veggies n a bowl with olive oil until coated.
• Spread evenly on a baking sheet with parchment paper to make sure nothing sticks to the pan.
• Top with garlic powder, salt & pepper.
• Bake sheet in the oven for about 30-35 minutes tossing every 10 minutes so they lightly brown all over. Remove from the oven and season more if desired

It is important to wait to roast veggies until you have a hot oven. If not they will begin to thaw out at the beginning and create a weird texture. For a bit more crisp at the end turn it up to high heat like 450 degrees. OR broil for a minute or so until browned as much as you’d like.

How to Save Leftover Cooked Vegetables

You know how I hate wasting food. You can easily save what is left and warm the next day. I would use a small Ziploc bag to store in the fridge overnight. Reheating vegetables is best in the microwave in 1 minute or in your air fryer at 400 F for 2 minutes or so.