This Sheet Pan Portobello Steak Dinner with Green Beans & Sweet Potatoes is a comforting vegan recipe that is perfect for an easy weeknight meal. All it takes is about 30 minutes to have a delicious one pan creation!

Sheet Pan Portobello Steak Dinner with Green Beans & Sweet Potatoes recipe on a plate, with a fork. Sitting on a cutting board.

Your busy weeknight just got a little less hectic, thanks to this Sheet Pan Portobello Steak Dinner with Green Beans & Sweet Potatoes recipe.

Not only is this vegan sheet pan recipe super easy to make, but the clean-up process is quick (especially if you use parchment paper).

Oh and even though portobello mushrooms are substituted for traditional steaks, the “meaty” texture is full of flavor & is very juicy, thanks to the marinade.

While the steaks are delicious on their own, we’ll be roasting it alongside with some green beans and potatoes. A classic duo, but is totally customizable.

Needles to say, this plant-based meal is a tasty option for an easy weeknight meal!

Why You’ll Love This Vegan Steak Recipe

Dinner Made Easy: A healthy vegan sheet pan dinner recipe that not only tastes delicious, but is on the table in less than 30 minutes.
Completely Customizable: With this Sheet Pan Portobello Steak Dinner with Green Beans & Sweet Potatoes recipe, you have the flexibility to incorporate & substitute with your favorite veggies!
Perfect Recipe for Non-Vegans: Whether you’re a plant-based pro or hard-core carnivore, this healthy vegan steak recipe will impress all.

Vegan Steak Dinner with Green Beans & Sweet Potatoes recipe on a plate, with a fork. Sitting on a cutting board.

Ingredients

Organic Portobello Mushrooms: The star of this vegan steak recipe. You’ll want to be sure to wipe them clean before marinating them.
Organic Marinade: We’ll be using avocado oil, garlic cloves, ground cumin, dried oregano, chili flakes, balsamic vinegar, steak sauce, sea salt, and black pepper, for the most epic mushroom marinade.
Organic Green Beans: Fresh or frozen both work! If you don’t have or don’t care for them, I recommend asparagus, broccoli, or brussel sprouts!
Organic Japanese Sweet Potato: You can technically use any type of potato you love! I personally leave the skin on, because it adds extra fiber! Just be sure to scrub them well before chopping.

How To Make

Sweet Potatoes. Preheat the oven to 425 degrees F and line a large baking sheet with parchment paper. On one side of the baking sheet, combine the chopped sweet potatoes with the oil & seasonings. Bake for 10 minutes.
Mushrooms & Green Beans. At the 10 minute mark, add the green beans with the remaining oil and seasonings. On the other side of the baking sheet, add the sliced mushrooms & pour over the marinade. Transfer back to the oven for 10 – 15 minutes.
Serve. Divide between bowls or plates. Enjoy!

Tips for Making this Vegan Steaks Perfectly

Organic Portobello Mushrooms: Don’t forget to clean your mushrooms before slicing them.
Organic Green Beans: Fresh or frozen both work! If you don’t have or don’t care for them, I recommend asparagus, broccoli, or brussel sprouts!
Organic Japanese Sweet Potato: You can technically use any type of potato you love! I personally leave the skin on, because it adds extra fiber! Just be sure to scrub them well before chopping.

Storing & Reheating

This Sheet Pan Portobello Steak Dinner with Green Beans & Sweet Potatoes recipe is perfect for leftovers & meal prep!

Fridge Storage. Transfer to an air-tight glass container in the refrigerator for up to 3 days.

Reheating. To reheat, simply preheat the oven to 350 degrees F. Transfer the sheet pan ingredients to an oven-safe dish. Place in the oven for 10 – 15 minutes, until warmed through.

Easy Vegan Steak Recipe with Green Beans & Sweet Potatoes on a plate, with a fork. Sitting on a cutting board.

More Vegan Recipes You’ll Love

If you make this recipe, please leave a review & rating below! I love hearing from you and it helps others learn more about the recipe too. Lastly, if you do make this recipe, don’t forget to tag me on Instagram! Be sure to follow along on Pinterest, Instagram, & TikTok for even more deliciousness & wellness tips!

Xoxo.

Christin.

Sheet Pan Portobello Steak Dinner with Green Beans & Potatoes

5 Stars 4 Stars 3 Stars 2 Stars 1 Star No reviews

Author: Christin Gillespie
Prep Time: 10
Cook Time: 25
Total Time: 35
Yield: 2 – 3 1x
Category: Main Dish
Method: Oven
Cuisine: American
Diet: Vegan

Print Recipe

Description

Ingredients

Scale

Always opt for organic ingredients.

MUSHROOM STEAKS

2 large portobello mushrooms, sliced
1 tbsp avocado oil
4 garlic cloves, minced
¼ cup balsamic vinegar
2 tbsp steak sauce
1 tsp ground cumin
1 tsp dried oregano
½ tsp chili flakes, to taste
Sea salt & black pepper, to taste

GREEN BEANS & POTATOES

1 large Japanese sweet potato, chopped
2 cups green beans

Cook Mode Prevent your screen from going dark

Instructions

Sweet Potatoes. Preheat the oven to 425 degrees F and line a large baking sheet with parchment paper. On one side of the baking sheet, combine the chopped sweet potatoes with the oil & seasonings. Bake for 10 minutes.
Mushrooms & Green Beans. At the 10 minute mark, add the green beans with the remaining oil and seasonings. On the other side of the baking sheet, add the sliced mushrooms & pour over the marinade. Transfer back to the oven for 10 – 15 minutes.
Serve. Divide between bowls or plates. Enjoy!

Notes

Organic Portobello Mushrooms: Don’t forget to clean your mushrooms before slicing them.

Organic Green Beans: Fresh or frozen both work! If you don’t have or don’t care for them, I recommend asparagus, broccoli, or brussel sprouts!

Organic Japanese Sweet Potato: You can technically use any type of potato you love! I personally leave the skin on, because it adds extra fiber! Just be sure to scrub them well before chopping.

Storing & Reheating: Transfer to an air-tight glass container in the refrigerator for up to 3 days. To reheat, simply preheat the oven to 350 degrees F. Transfer the sheet pan ingredients to an oven-safe dish. Place in the oven for 10 – 15 minutes, until warmed through.