Balsamic Roasted Frozen Vegetables

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Balsamic roasted frozen vegetables have a slightly caramelized texture and a subtle balsamic tang. They take only a few minutes to prep and are the ultimate easy and healthy side!

Close view of roasted frozen vegetables in a glass bowl on a table.

Quick Look at the Recipe

🍽️ Flavor: Savory with a subtle sweetness and tangy finish
⏱️ Prep Time: 4 minutes
🔥 Cook Time: 26 minutes
🕒 Ready In: 30 minutes
👥 Servings: 6 people
🥣 Main Ingredients: Frozen vegetables, olive oil, balsamic vinegar
📋 Method: Roast at 425 degrees
📖 Dietary Info: Gluten-free, dairy-free, egg-free, vegan, paleo, keto, Whole30
👩‍🍳 Tip: Roasting the vegetables first without the toppings evaporates the water and helps them develop crispy, caramelized edges.

Woman smiling while standing in a sunny room.

This is My Favorite Weeknight Side

As a mom of 3 under 4, the best recipes are nourishing, super easy, and family-approved, and these vegetables definitely meet those requirements. (Even my 3-year-old enjoys them 75% of the time which is a win for me!)

For years, I only cooked frozen vegetables as a last resort since I hated the mushy texture, but thanks to this method, they’re now my go-to for weeknights. They have the perfect, slightly caramelized texture and a slight balsamic tang that makes them feel special.

I love being able to get them in the oven so quickly and be able to pull out a healthy side that goes well with just about any meal I’m in the mood for.

Ingredients

Frozen vegetables – Do not thaw! I recommend using a California or Normandy blend. While this roasting method works with any type of frozen vegetable, blends with smaller vegetables cook more quickly and can burn, so you may need to adjust the roasting time.
Olive oil
Balsamic vinegar – Not balsamic glaze. This adds a rich, sweet and tangy finish to the vegetables.

Tools Needed

Large baking sheet

Testing Note: I tested this with a standard stainless steel baking sheet and it works well. However, when I make this for my family, I prefer using my cast iron baking sheet since it gives the vegetables an even crispier finish.

If you use a cast iron sheet, make sure to remove the vegetables promptly as the cast iron holds heat and will continue to cook them once they’re out of the oven.

Step-By-Step Instructions

Frozen mixed vegetables spread evenly on a baking sheet.

Step 1: First, place the baking sheet in the oven and preheat it to 425 degrees.

Once the oven is preheated, remove the hot baking sheet and evenly place the vegetables on it without allowing them to overlap or touch very much.

Bake for 18-20 minutes or until the edges are starting to get crispy.

Partially-cooked vegetables tossed with olive oil, balsamic vinegar, salt, and pepper.

Step 2: Then, remove the vegetables from the oven, drizzle with oil, balsamic vinegar, salt, and pepper and toss to combine.

When you’re done tossing, make sure they’re still spread across the pan evenly without overlapping!

Step 3: Bake them for an additional 7-8 minutes and serve warm.

Roasted balsamic vegetables on a baking sheet right out of the oven.

These roasted vegetables make the perfect easy side for breadcrumb-free Italian meatballs or a stuffed pepper skillet!

Tips for Crispy Roasted Frozen Vegetables

Preheat your pan – Placing the pan in the oven while it’s preheating helps the vegetables start cooking immediately and helps prevent them from getting soggy.

Don’t crowd the vegetables – To prevent the vegetables from steaming, there should be a little bit of space between each vegetable, and they should never overlap. If necessary, use two pans instead of one.

Add the toppings when they’re mostly cooked – Adding any more moisture or even salt to them at the beginning can make them soggy.

FAQs

Can I make these vegetables ahead of time?

These vegetables have the best flavor and texture immediately after roasting, however, they can work well for meal prep. Leftover roasted frozen vegetables are especially good in bowl recipes where they’re mixed with other ingredients.

Can you roast frozen vegetables without thawing them?

Yes, this recipe will only work if you use frozen, unthawed vegetables. Thawing the frozen vegetables first would actually make them mushier.

Can I use fresh vegetables instead of frozen?

This recipe is designed for frozen vegetables, and, for best results, fresh vegetables would require different cooking times and another method such as these roasted Brussels sprouts and butternut squash.

Why aren’t my roasted frozen vegetables crispy?

Frozen vegetables are prone to getting mushy, so make sure to follow this recipe carefully. Soggy vegetables are typically due to overcrowding the pan, adding the salt, oil, and flavorings too early, or not preheating the pan.

If you try this recipe, snap a photo and tag me on Instagram @violet_rightathome